Submission #1904010

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Source Code Expand

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

int main() {
	int n,k;
	scanf("%d %d", &n,&k);
	int i;
	int r[n];
	for (i = 0; i < n; i++) {
		scanf("%d", &r[i]);
	}
	double rate=0;
	int j, tmp;
	for (i = 0; i<n; ++i) {
		for (j = i + 1; j<n; ++j) {
			if (r[i] > r[j]) {
				tmp = r[i];
				r[i] = r[j];
				r[j] = tmp;
			}
		}
	}

	for (i = 0; i < k; i++) {
		rate = 0.5*(rate + r[n - k + i]);
	}

	printf("%.8lf\n", rate);
	
	return 0;

}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:6:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n,&k);
                       ^
./Main.cpp:10:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &r[i]);
                     ^

Judge Result