oj.uz

답안 #587703

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
587703 2022-07-02T08:56:06 Z Derzeed Feast (NOI19_feast) C++14
12 / 100
 47 ms 5576 KB 
#include <cstdlib>
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define com complex<double>
#define ld long double;
#define ii pair<ll,ll>
#define vi vector<int>
#define vii vector<ii>
#define vc vector<char>
#define vs vector<string>
#define vd vector<double>
#define vcom vector<com>
#define vld vector<ld>
#define vll vector<ll>
#define vvi vector<vi>
#define vvii vector<vii>
#define vvc vector<vc>
#define vvs vector<vs>
#define vvll vector<vll>
#define vvd vector<vd>
#define vvcom vector<vcom>
#define vvld vector<vld>
#define FOR(x,n) for(int x=0;x<(n);x++)
#define FORS(x,n) for(int x=1;x<=(n);x++)
#define FORE(x,a) for(auto &x: a)
#define FORT(x,a,b) for(int x=(a);x<(b);x++)
#define FORD(x,a,b) for(int x=(a);x>=(b);x--)
#define ALL(x) x.begin(),x.end()
#define REP(n) for(int _ = 0; _ < n; _++)
#define MT make_tuple
#define MP make_pair
#define pb push_back
#define endl '\n'
#define F first
#define S second
#define vvvll vector<vvll>
#define sz(x) ((int)x.size())

pair<ll,ll> relax(int p, vll &a) {
    int n = a.size();
    ll cv = 0; // curval
    ll cb = 0; // curbest

    ll t = 0, cnt = 0;

    FOR(i,n) {
        cv += a[i];
        if(cv <= cb-p && cb > p) {
            cnt += 1;
            t += cb-p;
            cv = 0;
            cb = 0;
        } else {
            cb = max(cb,cv);
            if(cv < 0) {
                cv = 0;
            }
        }
    }
    if(cb > p) {
        cnt += 1;
        t += cb-p;
        cv = 0;
    }
    return {t,cnt};
}

void solve() {
    int n,k; cin >> n >> k;
    vll a(n);
    FOR(i,n) cin >> a[i];

    int cp = 0;
    ll pv = 0;
    FOR(i,n) {
        if(a[i] > 0) {
            cp++;
            pv += a[i];
        }

    }

    if(cp <= k) {
        cout << pv << endl;
        return;
    }

    ll mi = 0, ma = 2e9;
    while(mi < ma ){
        ll t,cnt;
        ll mid = (mi+ma)/2;
        tie(t,cnt) = relax(mid,a);
        //cout << mid << " " << t << " " << cnt << endl;
        if(cnt <= k) {
            ma = mid;
        } else {
            mi = mid + 1;
        }
    }

    ll t,cnt;
    tie(t,cnt) = relax(mi,a);
    cout << t + cnt*mi << endl;
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int t = 1;
    //cin >> t;

    while(t--) {
        solve();
    }
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 39 ms 2516 KB Output is correct
2 Correct 40 ms 5448 KB Output is correct
3 Correct 43 ms 5464 KB Output is correct
4 Correct 46 ms 5576 KB Output is correct
5 Correct 42 ms 5452 KB Output is correct
6 Correct 40 ms 5276 KB Output is correct
7 Correct 41 ms 5268 KB Output is correct
8 Correct 43 ms 5456 KB Output is correct
9 Correct 39 ms 5284 KB Output is correct
10 Correct 41 ms 5444 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 33 ms 2516 KB Output is correct
2 Correct 30 ms 2644 KB Output is correct
3 Correct 29 ms 2516 KB Output is correct
4 Correct 29 ms 2516 KB Output is correct
5 Correct 38 ms 2516 KB Output is correct
6 Correct 32 ms 3628 KB Output is correct
7 Correct 30 ms 3820 KB Output is correct
8 Correct 42 ms 5456 KB Output is correct
9 Correct 39 ms 5276 KB Output is correct
10 Correct 33 ms 3792 KB Output is correct

Subtask #3
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 47 ms 2644 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 39 ms 2516 KB Output is correct
2 Correct 40 ms 5448 KB Output is correct
3 Correct 43 ms 5464 KB Output is correct
4 Correct 46 ms 5576 KB Output is correct
5 Correct 42 ms 5452 KB Output is correct
6 Correct 40 ms 5276 KB Output is correct
7 Correct 41 ms 5268 KB Output is correct
8 Correct 43 ms 5456 KB Output is correct
9 Correct 39 ms 5284 KB Output is correct
10 Correct 41 ms 5444 KB Output is correct
11 Correct 33 ms 2516 KB Output is correct
12 Correct 30 ms 2644 KB Output is correct
13 Correct 29 ms 2516 KB Output is correct
14 Correct 29 ms 2516 KB Output is correct
15 Correct 38 ms 2516 KB Output is correct
16 Correct 32 ms 3628 KB Output is correct
17 Correct 30 ms 3820 KB Output is correct
18 Correct 42 ms 5456 KB Output is correct
19 Correct 39 ms 5276 KB Output is correct
20 Correct 33 ms 3792 KB Output is correct
21 Incorrect 47 ms 2644 KB Output isn't correct
22 Halted 0 ms 0 KB -