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Submission #501407

# Submission time Handle Problem Language Result Execution time Memory
501407 2022-01-03T06:15:13 Z Jomnoi Growing Trees (BOI11_grow) C++17
0 / 100
 1000 ms 2036 KB 
#include <bits/stdc++.h>
#define DEBUG 0
using namespace std;

const int N = 1e5 + 10;

int n;
int h[N];
int fenwick[N];

void update(int idx, int val) {
    for(; idx < N; idx += (idx & -idx)) {
        fenwick[idx] += val;
    }
}

int query(int idx) {
    int res = 0;
    for(; idx > 0; idx -= (idx & -idx)) {
        res += fenwick[idx];
    }
    return res;
}

int lowerbound(int x) {
    int l = 1, r = n, low = n + 1;
    while(l <= r) {
        int mid = (l + r) / 2;

        if(h[mid] + query(mid) < x) {
            l = mid + 1;
        }
        else {
            r = mid - 1;
            low = mid;
        }
    }
    return low;
}

int upperbound(int x) {
    int l = 1, r = n, up = 0;
    while(l <= r) {
        int mid = (l + r) / 2;

        if(h[mid] + query(mid) > x) {
            r = mid - 1;
        }
        else {
            l = mid + 1;
            up = mid;
        }
    }
    return up;
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    int m;
    cin >> n >> m;
    for(int i = 1; i <= n; i++) {
        cin >> h[i];
    }
    sort(h + 1, h + n + 1);

    while(m--) {
        char t;
        int a, b;
        cin >> t >> a >> b;
        if(t == 'F') {
            int idx = lowerbound(b);
            if(h[idx + a - 1] + query(idx + a - 1) != b) {
                int idx2 = lowerbound(b + 1);
                int idx3 = upperbound(b + 1);
                update(idx, 1);
                update(idx2, -1);
                a -= idx2 - idx;
                update(idx3 - a + 1, 1);
                update(idx3 + 1, -1);
            }
            else {
                update(idx, 1);
                update(idx + a, -1);
            }
        }
        else {
            cout << upperbound(b) - lowerbound(a) + 1 << '\n';
        }

        if(DEBUG) {
            cout << "Debugging : \n";
            for(int i = 1; i <= n; i++) {
                cout << h[i] + query(i) << " ";
            }
            cout << '\n';
        }
    }
    return 0;
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 10 ms 1688 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1078 ms 332 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 716 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 568 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 11 ms 1432 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 10 ms 1744 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 8 ms 1616 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 13 ms 2036 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 11 ms 1832 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 19 ms 1956 KB Execution killed with signal 11