Submission #3451263

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Source Code Expand

#include <stdio.h>
#include<math.h>
int main()
{
 long int x[26]={0},y,z,sum,i=0,k;
 char a[100000];
 gets(a);
 k=0;
 for(i=0;i<strlen(a);i++)
 {
     if(x[a[i]-97]==0)
     {
         x[a[i]-97]=1;
         k++;
     }
 }
 if(k==26)
 {
     printf("None");
 }else{
     for(i=0;i<26;i++)
     {
         if(x[i]==0)
         {
             printf("%c",i+97);
             
             break;
         }
        
     }
 }

    return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:8:2: warning: implicit declaration of function ‘gets’ [-Wimplicit-function-declaration]
  gets(a);
  ^
./Main.c:10:12: warning: implicit declaration of function ‘strlen’ [-Wimplicit-function-declaration]
  for(i=0;i<strlen(a);i++)
            ^
./Main.c:10:12: warning: incompatible implicit declaration of built-in function ‘strlen’
./Main.c:10:12: note: include ‘<string.h>’ or provide a declaration of ‘strlen’
./Main.c:26:21: warning: format ‘%c’ expects argument of type ‘int’, but argument 2 has type ‘long int’ [-Wformat=]
              printf("%c",i+97);
                     ^
/tmp/ccuCzafB.o: In function `main':
Main.c:(.text.startup+0x36): warning: the `gets' function is dangerous and should not be used.

Judge Result