Submission #1842619

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Source Code Expand

#include <bits/stdc++.h>
#define pb push_back
#define fs first
#define sc second
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<double> vd;
typedef pair<int, int> pii;
typedef vector<pii> vpii;

const int N=110000;
const ll INFTY=1e18;

ll x[N], s[N], sp[N];

int main() {
    ll i, n, k, ans;
    scanf("%lld%lld", &n, &k);
    for(i=1; i<=n; i++) {
        scanf("%lld", &x[i]);
        s[i]=s[i-1]+x[i];
        sp[i]=sp[i-1]+max(x[i], 0LL);
    }
    ans=-INFTY;
    for(i=1; i+k-1<=n; i++) {
        ans=max(ans, sp[i-1]+sp[n]-sp[i+k-1]);
        ans=max(ans, sp[i-1]+sp[n]-sp[i+k-1]+s[i+k-1]-s[i-1]);
    }
    printf("%lld\n", ans);
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:23:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld%lld", &n, &k);
                              ^
./Main.cpp:25:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld", &x[i]);
                             ^

Judge Result