Submission #1207197

#	Time	Username	Problem	Language	Result	Execution time	Memory
1207197		wazj2024	Memory (IOI10_memory)	C++20	Compilation error	0 ms	0 KiB

memory

#include <stdio.h>
#include <stdlib.h>
#include <iostream>
using namespace std;
static char card[51];
static int up[2], is_up[51], candy[25], candies, moves;
char faceup(int C){
   int c0, c1;
   if (C < 1 || C > 50 || is_up[C]) {
      exit(92);
   }
   is_up[C] = 1;
   up[moves%2] = C;
   moves++;
   if (moves%2 == 0) {
      c0 = card[ up[0] ] - 'A';
      c1 = card[ up[1] ] - 'A';
      if (c0==c1 && !candy[c0]) {
         candy[c0] = 1;
         ++candies;
      }
      is_up[ up[0] ] = is_up[ up[1] ] = 0;
   }
   return card[C];
}
int bpar(char c,int b){
    for(int i;i<51;i++)
    {
        if(card[i]==c&&i!=b)
        return i;
    }
    return 0;
}
void play() {
    for(int i=0;i<50;i++){
    faceup(i);
    faceup(bpar(card[i],i));
    }
}

void playgame(){
   int i;
   for (i=1;i<=50;i++) {
      card[i] = getchar();
   }
   moves = candies = 0;
   play();
   if (candies != 25) {
      exit(91);
   }
}

int main(){
   playgame();
   printf("OK %d\n",moves);
   return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccovpdGW.o: in function `faceup(int)':
grader.cpp:(.text+0x0): multiple definition of `faceup(int)'; /tmp/ccfBm2bJ.o:memory.cpp:(.text+0x0): first defined here
/usr/bin/ld: /tmp/ccovpdGW.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccfBm2bJ.o:memory.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status