oj.uz

Submission #630532

# Submission time Handle Problem Language Result Execution time Memory
630532 2022-08-16T13:14:13 Z petykokusz79 Deda (COCI17_deda) C++14
140 / 140
 108 ms 7888 KB 
#include <iostream>
#include <algorithm>
#include <vector>

#define MAXV 1000000001

using namespace std;

struct segtree {
    vector<int> minS;
    int size;

    segtree(int n) {
        size = n;
        minS.resize(4 * n, MAXV);
    }
    
    void set(int i, int v, int x, int lx, int rx) {
        if (lx + 1 == rx) {
            minS[x] = v;
            return;
        }
        int m = (lx + rx) / 2;
        if (i < m) {
            set(i, v, 2 * x + 1, lx, m);
        }
        else {
            set(i, v, 2 * x + 2, m, rx);
        }
        minS[x] = min(minS[2 * x + 1], minS[2 * x + 2]);
    }

    void set(int i, int v) {
        set(i, v, 0, 0, size);
    }

    int get(int l, int r, int v, int x, int lx, int rx) {
        if (rx <= l || r <= lx) {
            return -1;
        }
        if (minS[x] > v) {
            return -1;
        }
        if (lx + 1 == rx) {
            return lx + 1;
        }
        int m = (lx + rx) / 2, f = get(l, r, v, 2 * x + 1, lx, m);
        return f == -1 ? get(l, r, v, 2 * x + 2, m, rx) : f;
    }

    int get(int l, int v) {
        return get(l, size, v, 0, 0, size);
    }
};

int main() {
    cin.sync_with_stdio(false);
    cin.tie(nullptr);

    int N, Q;
    cin >> N >> Q;
    segtree stS(N);
    while (Q--) {
        char speaker;
        int stop, child;
        cin >> speaker >> stop >> child;
        --child;
        if (speaker == 'M') {
            stS.set(child, stop);
        }
        else {
            cout << stS.get(child, stop) << '\n';
        }
    }
}

Subtask #1
140.0 / 140.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 304 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 2 ms 340 KB Output is correct
4 Correct 76 ms 7888 KB Output is correct
5 Correct 88 ms 5808 KB Output is correct
6 Correct 88 ms 6896 KB Output is correct
7 Correct 108 ms 7884 KB Output is correct