gdb> run
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Program received signal SIGSEGV, Segmentation fault.
Error while running hook_stop:
Invalid type combination in ordering comparison.
0xb7edcec8 in strcmp () from /lib/libc.so.6
gdb>



#include <stdio.h>
#include <ctype.h>
#include <string.h>
int main(){
  char temp[2], data[8][8][2], ec[2];
  char *table[][8]={{"8","7","6","5","4","3","2","1"},\
{"A","B","C","D","E","F","G","H"}};
  char *valid[]={"P","V","J","S","D","K"," "};
  char *valid1[]={"p","v","j","s","d","k"," "};
  int i,j,k=10 ,ok,ex,ey;
  for(i=0;i<8;i++){
    for(j=0;j<8;j++){
      fgets(data[i][j], 2, stdin);
      if(strcmp(data[i][j],"\n") == 0) j--;
    }
  }

  for(i=0;i<8;i++){
    for(j=0;j<8;j++){
    ok=0;
      for(k=0;k<=8;k++){
        if (k==8 && ok!=1){
          ok=0;
          fprintf(stderr,"Chyba: Na sachovnici na pozici %s%s byl nalezen \
nepovoleny znak '%s'!\n",table[0][i],table[1][j],data[i][j]);
          return 1;
        }
        if(strcmp(data[i][j],valid[k])==0 || strcmp(data[i][j],valid1[k])==0){
          ok=1;
          break;
        }

      }
    }
  }

return 0;
}