Submission #2795751

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Source Code Expand

#include <stdio.h>
#include <stdlib.h>

int q(const int *a,const int *b){
    return *a-*b;
}

int main(void)
{
    int n[3];
    scanf("%d%d%d",&n[0],&n[1],&n[2]);
    qsort(n,3,4,q);
    printf("%d\n",n[1]);
    return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:12:17: warning: passing argument 4 of ‘qsort’ from incompatible pointer type [-Wincompatible-pointer-types]
     qsort(n,3,4,q);
                 ^
In file included from ./Main.c:2:0:
/usr/include/stdlib.h:765:13: note: expected ‘__compar_fn_t {aka int (*)(const void *, const void *)}’ but argument is of type ‘int (*)(const int *, const int *)’
 extern void qsort (void *__base, size_t __nmemb, size_t __size,
             ^
./Main.c:11:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d",&n[0],&n[1],&n[2]);
     ^

Judge Result