Submission #1416768

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Source Code Expand

#include <stdio.h>
#include<stdlib.h>
int int_sort( const void * a , const void * b ) {
  /* 引数はvoid*型と規定されているのでint型にcastする */
  if( *( int * )a < *( int * )b ) {
    return -1;
  }
  else
  if( *( int * )a == *( int * )b ) {
    return 0;
  }
  return 1;
}

int main(void){
    int N,M,K;
    int z,x;
    scanf("%d %d %d",&N,&M,&K);
        int mt[N];
    for(int i=0;i<N;i++)mt[i]=0;
    for(int i=0;i<M;i++){
        scanf("%d %d %d",&z,&x,&mt[i]);
    }
      qsort(( void * )mt , N, sizeof( mt[0] )   , int_sort );
    int ans=0;
    for(int i=0;i<K;i++)ans+=mt[i];
    printf("%d",ans);
    return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:18:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d %d",&N,&M,&K);
     ^
./Main.c:22:9: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d",&z,&x,&mt[i]);
         ^

Judge Result