Cody Boone Ferguson
fa80f73859
If one entered input < 0 || > 077 (octal) the program would enter an infinite loop that flooded the screen, forcing the user to terminate the program. The problem was that scanf(3) (with "%o %o" specifier string) was in a loop checking for return value of 2 (this was not a problem because scanf(3) does not return until all the specifiers are processed or I suppose some error occurs) and not checking the values. Instead it just checked a function on the numbers. This fix involves using scanf(3) with the specifier "%4s %4s" and then using strtol(3) with base 8 and then checking for < 0 || > 077 (using "%o %o" will not work). The game now functions as expected without flooding the terminal if invalid input is given. The judges' remarks about the range has been kept in as it's still invalid it just won't flood the screen.
217 lines
3.2 KiB
C
217 lines
3.2 KiB
C
#include <stdio.h>
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; m(x)(x<0?-1:!!x)
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; g tj()-J
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; a(x)(x<0?-x:x)
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; h(x)((x)<=K?x:N-(x))
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; f 9999
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; A return
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; H printf{
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; R double
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; U int
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; V for
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; b else
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; u while
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; B if
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char ii[5],jj[5];
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U v,w,Y} -1,W,J,p,F,o} f,M,N,K,X,YY,_,P[f],s{ } ;
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typedef U{ *L} { } ;
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L q[f];
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tj{ } {
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U S} m{ v} +{ m{ w} <<K} ;
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B{ !S} A J;
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V{ v} W+S; v!} J&&!q[v]; v+} S} ;
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A v;
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}
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k{ } {
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_} K;
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A v?a{ v} >1||w-Y||!q[J]:{ w-Y&&{ w-Y*2||q[W+Y*{ N+1} ]||
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{ J>>K} -K+{ Y-1} / 2} } ||q[J];
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}
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z{ } {
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_} 5;
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A v*w||g;
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}
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e{ } {
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_} -2;
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A{ v*v*v-v||w*w*w-w} &&{ J-W-2||{ W&N} -4||{ W>>K!} { Y-1?N:0} } ||
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q[W+1]||q[W+2]||q[W+K]!} z||P[W+K]*Y<0} ;
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}
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R VR{ } {
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int PZ} 0x7fff;
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A{ R} { rand{ } &PZ} /{ R} PZ;
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}
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l{ } {
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_} K+1;
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A{ v*w&&a{ v} -a{ w} } ||g;
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}
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R UC{ } {
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R { } 0,d;
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u{ { { +} d} VR{ } } <1.0} ;
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A d;
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}
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c{ } {
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_} -11;
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A a{ v} -a{ w} ||g;
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}
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I{ ur,n,x} {
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W} ur;
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J} n;
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B{ P[W]!} Y||P[J]} } Y} A J+1;
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v} { J&N} -{ W&N} ;
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w} { J>>K} -{ W>>K} ;
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A q[W]{ } ||{ x&&QL{ W,J,s} } ;
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}
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TT{ W} {
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v} w} 0;
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A q[W]{ } +K;
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}
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s{ } {
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U j} -1,{ ;
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Y} -Y;
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V{ { } 0; { <M; ++{ } {
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B{ j<0&&P[{ ]} } -Y&&TT{ { } &&_} } -2}
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{
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j} { ;
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{ } -1;
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}
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b B{ j>} 0&&!I{ { ,j,0} } A Y} -Y;
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}
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A!{ Y} -Y} ;
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}
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bb{ } {
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_} 1;
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A a{ v*w} -2;
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}
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uv{ } {
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V{ v} 0; v<f; ++v} {
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B{ h{ v>>K} } } 0} {
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U S} h{ v&N} ;
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q[v]} !S?z:{ S} } 1?bb:{ S} } 2?c:{ v&N>K?l:e} } } ;
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}
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b B{ h{ v>>K} } } 1} q[v]} k;
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b q[v]} 0;
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P[v]} !!q[v]*{ 28-v} ;
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}
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}
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y{ } {
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U G} Y,{ ;
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J} 0;
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V{ { } 0; { <M; ++{ } {
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{ %8||H"\n%4o ",{ } ;
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B{ { Y} P[{ ]} m{ P[{ ]} } &&
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TT{ { } } H"%c ",_+93+Y*16} ;
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b H"- "} ;
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}
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H"\n "} ;
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do
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H"%2d",{ ++&N} ;
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u{ { &N} ;
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Y} G;
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H"\n"} ;
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}
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O{ W,J} {
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B{ { q[J]} q[W]} } } k&&h{ J>>K} } } 0} q[J]} l;
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B{ q[W]} } e} B{ J-W} } 2} O{ J+1,J-1} ;
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b B{ W-J} } 2} O{ W-1,W+1} ;
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P[J]} P[W];
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q[W]} 0;
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P[W]} 0;
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}
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QL{ W,J,D} L D;
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{
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U HQ} P[J],YX;
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L AJ} q[J],XY} q[W];
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O{ W,J} ;
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YX} D{ } ;
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O{ J,W} ;
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q[J]} AJ;
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q[W]} XY;
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P[J]} HQ;
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A YX;
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}
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C{ } {
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U { ,j,BZ} 0;
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V{ { } 0; { <M; ++{ } {
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L Z} q[{ ];
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B{ Z} {
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U r} h{ { >>K} +h{ { &N} ,G} Y,
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S} Z} } z?88:{ Z} } k?11
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+r+{ P[{ ]<0?N-{ { >>K} :{ { >>K} } :
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{ Z} } l?124-{ { YY<8&&{ { { &N} !} K||
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{ { >>K} !} { P[{ ]>0?0:N} } } ?M:0} :
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{ Z} } c?41+r:{ Z} } e?f-r-r:36+r+r} } } } ;
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Y} P[{ ];
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V{ j} 0; j<M; ++j} B{ !I{ { ,j,0} } S+} { P[j]?5:1} ;
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BZ+} G} } Y?S:-S;
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Y} G;
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}
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}
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B{ !{ ++X&M-1} } write{ 1,".",1} ;
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A BZ;
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}
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PX{ } {
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U { ,Q} 0,XP} 0,JZ} M*M,E} -f,t,S} o;
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B{ !F--} A++F+C{ } ;
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V{ { } 0; { <JZ; ++{ } B{ !I{ { >>K+K,{ &M-1,1} } {
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Y} -Y;
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o} -E;
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t} -QL{ { >>K+K,{ &M-1,PX} ;
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Y} -Y;
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B{ t>E} {
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++XP;
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Q} { ;
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E} t;
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B{ E>} S}
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A++F,E;
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}
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}
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B{ !XP} E} s{ } ?-f+1:0;
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p} Q;
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A++F,E;
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}
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RZ{ } {
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U { ,j,T} 0;
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V{ ; ; } {
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y{ } ;
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o} f;
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do{
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ii[0]='\0';
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jj[0]='\0';
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i=j=0;
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H"\n%d %d %d %s ",X,T,C{ } ,s{ } ?"!":">"} ;
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fflush{ stdout} ;
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}
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u{ scanf{ "%4s%4s",| ,jj} !} 2||(i=strtol(ii,NULL,8))<0||i>077||(j=strtol(jj,NULL,8))<0||j>077||I{ { ,j,1} } ;
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O{ { ,j} ;
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y{ } ;
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X} 0;
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++YY;
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Y} -Y;
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T} PX{ } ;
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{ } p>>{ K<<1} ;
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j} p&{ M-1} ;
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B{ I{ { ,j,1} } {
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H"Rats!\n"} ;
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A;
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}
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O{ { ,j} ;
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Y} -Y;
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B{ T>M*M} H"\nHar har.\n"} ;
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}
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}
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main{ ac,av} char**av;
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{
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long time{ } ,j} time{ &j} ;
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R { } 0;
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srand{ { U} j} ;
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V{ M} 0; M<} f; ++M} { +} UC{ } ;
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M} { /100;
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B{ M&3} ++M;
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B{ M&1} --M;
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V{ N} 1; N*N<M; ++N} ;
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K} --N/2;
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F} ac>1?atoi{ av[1]} :2;
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uv{ } ;
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RZ{ } ;
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}
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