Submission #1836794

---

Source Code Expand

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

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

int main(void){
    int n, k;
    int r[100];
    int i;
    double myrate = 0;

    scanf("%d %d", &n, &k);

    for (i = 0; i < n; i++){
        scanf("%d", &r[i]);
    }

    qsort(r, n, sizeof(int), compare_int);


    for (i = k-1; i >= 0; i--){
        myrate = (myrate + r[i]) / 2.0;
    }

    printf("%f\n", myrate);
    
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:16:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &k);
                           ^
./Main.cpp:19:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &r[i]);
                           ^

Judge Result