Submission #855219

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Source Code Expand

#include <cstdio>
#include <cstring>
#include <algorithm>

using namespace std;

const int MAXN=400003;

int n,a,tot;
int x;
long long dp[2503][53],ans;

int main() {
    while(2 == scanf("%d%d", &n, &a)) {
        tot = a*n;
        memset(dp, 0, sizeof(dp));
        dp[0][0]=1;
        for(int i = 1 ; i <= n ; ++i) {
            scanf("%d", &x);
            for(int j = tot ; j >= x ; --j) {
                for(int k = 1 ; k <= i ; ++k) {
                    dp[j][k]+=dp[j-x][k-1];
                }
            }
        }
        ans=0;
        for(int j = tot ; j >= 1 ; --j) {
            for(int k = 1 ; k <= n ; ++k) {
                if(k * a == j) {
                    ans += dp[j][k];
                }
            }
        }
        printf("%lld\n", ans);
    }
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:19:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d", &x);
                            ^

Judge Result