Submission #1444685

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;

typedef long long ll;

int N;
int A,B;
double V[100];
double ans = 0;
ll sum = 0;
int cou1 = 0,cou2 = 0;
ll C[60][60];

int main()
{
    scanf("%d%d%d",&N,&A,&B);
    for(int i = 0; i < N + 1; ++i)
    {
        for(int j = 0; j <= i; ++j)
        {
            if(j == 0 || j == i)C[i][j] = (ll)1;
            else C[i][j] = C[i - 1][j - 1] + C[i - 1][j];
        }
    }
    for(int i = 0; i < N; i++)scanf("%lf",&V[i]);
    sort(V,V + N);
    for(int i = 0; i < A; i++)
    {
        ans += V[N - 1 - i];
    }ans /= A;
    reverse(V,V + N);
    for(int i = 0; i < N; i++)
    {
        if(V[i] == V[A - 1])
        {
            cou1++;
            if(i <= A - 1)cou2++;
        }
    }
    if(V[0] == V[A - 1])
    {
        for(int i = cou2; i < B + 1; i++)
        {
            sum += C[cou1][i];
        }
    }
    else sum = C[cou1][cou2];
    printf("%lf\n",ans);
    printf("%lld\n",sum);
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:16:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d",&N,&A,&B);
                             ^
./Main.cpp:25:49: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     for(int i = 0; i < N; i++)scanf("%lf",&V[i]);
                                                 ^

Judge Result