Submission #1357197

#	Time	Username	Problem	Language	Result	Execution time	Memory
1357197		sim_ple	Feast (NOI19_feast)	C++20	8 / 100	18 ms	2780 KiB

feast

/*
    written by sim_ple
*/
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define N 500005
#define itn int
#define all(x) x.begin() , x.end()

void solve(){
    int n , k;
    cin >> n >> k;
    int a[n + 1] , sum = 0 , s = 0;
    for(int i = 1; i <= n; i++){
        cin >> a[i];
        s += a[i];
    }
    int sum1 = 0 , idx = 0;
    for(int i = 1; i <= n; i++){
        if(a[i] >= 0){
            sum += a[i];
        }
        else{
            idx = i;
            break;
        }
    }
    for(int i = idx + 1; i <= n; i++){
        sum1 += a[i];
    }
    if(k >= 2){
        cout << sum + sum1 << endl;
        return;
    }
    cout << max({s , sum1 , sum}) << endl;
}

int32_t main() {
    ios::sync_with_stdio(false);cin.tie(nullptr);
    int t = 1;
    //cin >> t;
    while(t--) solve();
}

• Subtask 1: 0 / 4
• Subtask 2: 8 / 8
• Subtask 3: 0 / 18
• Subtask 4: 0 / 10
• Subtask 5: 0 / 11
• Subtask 6: 0 / 20
• Subtask 7: 0 / 29