Submission #122538

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Source Code Expand

#include<cstdio>
#include<algorithm>
#include<cstring>
using namespace std;

#define rep(i,n) for(int i=0; i<n; i++)

int N;
bool watched[100];
int rate[100];

double solve(int d){
	if(d==0)	return 0.0;
	double mr = 0.0;
	rep(i,N){
		if(!watched[i]){
			watched[i] = true;
			double r = solve(d-1)+rate[i];
			if(r > mr)	mr = r;
			watched[i] = false;
		}
	}
	return mr/2.0;
}

int main(){
	int k;
	memset(watched, 0, sizeof(watched));
	scanf("%d %d", &N, &k);
	rep(i,N){
		scanf("%d", &rate[i]);
	}
	double r = solve(k);
	printf("%.6lf\n", r);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:29:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
./Main.cpp:31:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result