oj.uz

Submission #225056

# Submission time Handle Problem Language Result Execution time Memory
225056 2020-04-19T08:41:00 Z tictaccat Feast (NOI19_feast) C++14
30 / 100
 254 ms 13672 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long

int N,K;
int A[500000], v[500000], l[500000], r[500000], a[500000];
priority_queue<pair<int,int>> pq;
// priority_queue<pair<int,int>> pq;

main() {

    cin >> N >> K;

    int cur = 0, t = 0, pos = 0;
    for (int i = 0; i <= N; i++) {
        if (i < N) cin >> A[i];
        if (i < N && (cur >= 0) == (A[i] >= 0)) cur += A[i];
        else {
            if (cur == 0) {
                cur = A[i];
                continue;
            }
          //  cout << i << " " << cur << " " << t << "\n";
            v[t] = cur;
            l[t] = t-1;
            r[t] = t+1;
            pq.push(make_pair(-abs(cur),t));
            a[t] = 1;
            t++; 
            if (cur > 0) pos++;
            cur = A[i];
        }
    }

    int x = 0, ans = 0;

    //cout << "\n";
    
    while (!pq.empty()) {
        int val, i;
        tie(val, i) = pq.top();
        pq.pop();
        if (!a[i]) continue;
        if (pos > K) {
            //cout << "a " << v[i] << " " << i << "\n";
            if (v[i] > 0) pos--;
            if (l[i] != -1) {
                if (v[l[i]] > 0) pos--;
                v[i] += v[l[i]];
                r[l[l[i]]] = i;
                a[l[i]] = 0;
                l[i] = l[l[i]];
            }
            if (r[i] != t) {
                if (v[r[i]] > 0) pos--;
                v[i] += v[r[i]];
                l[r[r[i]]] = i;
                a[r[i]] = 0;
                r[i] = r[r[i]];
            }
            pq.push(make_pair(-abs(v[i]),i));
           // cout << "add " << v[i] << " " << i << " " << a[i] << "\n";
            if (v[i] > 0) pos++;
        }
        else {
          //  cout << "b " << v[i] << " " << i << " " << a[i] << "\n";
            if (v[i] > 0) {
                ans += v[i];
              //  cout << "! " << v[i] << "\n";
            }
        }
        //cout << v[i] << " " << i << "\n";

        //if (++x == 3) break;
    }

    cout << ans << "\n";

    //cout <<  pos << "\n";

}

Compilation message

feast.cpp:10:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^
feast.cpp: In function 'int main()':
feast.cpp:35:9: warning: unused variable 'x' [-Wunused-variable]
     int x = 0, ans = 0;
         ^

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 178 ms 5496 KB Output is correct
2 Correct 181 ms 5472 KB Output is correct
3 Correct 187 ms 5624 KB Output is correct
4 Correct 185 ms 5496 KB Output is correct
5 Correct 186 ms 5496 KB Output is correct
6 Correct 180 ms 5496 KB Output is correct
7 Correct 182 ms 5368 KB Output is correct
8 Correct 184 ms 5584 KB Output is correct
9 Correct 179 ms 5368 KB Output is correct
10 Correct 182 ms 5496 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 98 ms 3704 KB Output is correct
2 Correct 103 ms 3776 KB Output is correct
3 Correct 97 ms 3704 KB Output is correct
4 Correct 97 ms 3832 KB Output is correct
5 Correct 178 ms 5368 KB Output is correct
6 Correct 96 ms 3704 KB Output is correct
7 Correct 99 ms 3832 KB Output is correct
8 Correct 185 ms 5500 KB Output is correct
9 Correct 179 ms 5368 KB Output is correct
10 Correct 99 ms 3960 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 251 ms 13672 KB Output is correct
2 Correct 244 ms 13668 KB Output is correct
3 Correct 250 ms 13668 KB Output is correct
4 Correct 248 ms 13668 KB Output is correct
5 Correct 246 ms 13668 KB Output is correct
6 Correct 254 ms 13668 KB Output is correct
7 Correct 249 ms 13668 KB Output is correct
8 Correct 246 ms 13672 KB Output is correct
9 Correct 252 ms 13668 KB Output is correct
10 Correct 250 ms 13540 KB Output is correct

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Incorrect 5 ms 384 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Incorrect 5 ms 384 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Incorrect 5 ms 384 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #7
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 178 ms 5496 KB Output is correct
2 Correct 181 ms 5472 KB Output is correct
3 Correct 187 ms 5624 KB Output is correct
4 Correct 185 ms 5496 KB Output is correct
5 Correct 186 ms 5496 KB Output is correct
6 Correct 180 ms 5496 KB Output is correct
7 Correct 182 ms 5368 KB Output is correct
8 Correct 184 ms 5584 KB Output is correct
9 Correct 179 ms 5368 KB Output is correct
10 Correct 182 ms 5496 KB Output is correct
11 Correct 98 ms 3704 KB Output is correct
12 Correct 103 ms 3776 KB Output is correct
13 Correct 97 ms 3704 KB Output is correct
14 Correct 97 ms 3832 KB Output is correct
15 Correct 178 ms 5368 KB Output is correct
16 Correct 96 ms 3704 KB Output is correct
17 Correct 99 ms 3832 KB Output is correct
18 Correct 185 ms 5500 KB Output is correct
19 Correct 179 ms 5368 KB Output is correct
20 Correct 99 ms 3960 KB Output is correct
21 Correct 251 ms 13672 KB Output is correct
22 Correct 244 ms 13668 KB Output is correct
23 Correct 250 ms 13668 KB Output is correct
24 Correct 248 ms 13668 KB Output is correct
25 Correct 246 ms 13668 KB Output is correct
26 Correct 254 ms 13668 KB Output is correct
27 Correct 249 ms 13668 KB Output is correct
28 Correct 246 ms 13672 KB Output is correct
29 Correct 252 ms 13668 KB Output is correct
30 Correct 250 ms 13540 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 4 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Incorrect 5 ms 384 KB Output isn't correct
36 Halted 0 ms 0 KB -