oj.uz

Submission #418183

# Submission time Handle Problem Language Result Execution time Memory
418183 2021-06-05T07:47:59 Z dolphingarlic Trampoline (info1cup20_trampoline) C++14
54 / 100
 810 ms 46800 KB 
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;

map<int, set<pair<int, int>>> trampolines;
int a[200001], b[200001], nxt[200001][20];

int main() {
    cin.tie(0)->sync_with_stdio(0);
    int r, c, n;
    cin >> r >> c >> n;
    for (int i = 1; i <= n; i++) {
        cin >> a[i] >> b[i];
        trampolines[-a[i]].insert({b[i], i});
    }
    for (auto &i : trampolines) {
        for (pair<int, int> j : i.second) {
            auto lb = trampolines[i.first - 1].lower_bound({j.first, 0});
            if (lb != trampolines[i.first - 1].end()) {
                nxt[j.second][0] = lb->second;
                for (int k = 1; k < 20; k++)
                    nxt[j.second][k] = nxt[nxt[j.second][k - 1]][k - 1];
            }
        }
    }
    int t;
    cin >> t;
    while (t--) {
        int x1, y1, x2, y2;
        cin >> x1 >> y1 >> x2 >> y2;
        if (x1 == x2) {
            cout << "Yes\n";
            continue;
        }
        if (x1 > x2) {
            cout << "No\n";
            continue;
        }
        auto lb = trampolines[-x1].lower_bound({y1, 0});
        if (lb == trampolines[-x1].end()) {
            cout << "No\n";
            continue;
        }
        int rem = x2 - x1 - 1;
        int curr = lb->second;
        for (int i = 0; i < 20; i++) if (rem & (1 << i))
            curr = nxt[curr][i];
        if (curr && b[curr] <= y2) cout << "Yes\n";
        else cout << "No\n";
    }
    return 0;
}

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 1584 KB 200 token(s): yes count is 21, no count is 179
2 Correct 8 ms 1696 KB 200 token(s): yes count is 70, no count is 130
3 Correct 5 ms 1228 KB 197 token(s): yes count is 25, no count is 172

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 239 ms 28996 KB 4000 token(s): yes count is 99, no count is 3901
2 Correct 230 ms 28996 KB 4000 token(s): yes count is 91, no count is 3909
3 Correct 239 ms 28444 KB 4000 token(s): yes count is 4000, no count is 0
4 Correct 234 ms 29016 KB 4000 token(s): yes count is 1991, no count is 2009

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 446 ms 39236 KB 200000 token(s): yes count is 110486, no count is 89514
2 Correct 478 ms 39364 KB 200000 token(s): yes count is 114664, no count is 85336
3 Correct 504 ms 39348 KB 200000 token(s): yes count is 86232, no count is 113768
4 Correct 538 ms 39572 KB 200000 token(s): yes count is 94603, no count is 105397
5 Correct 586 ms 39492 KB 200000 token(s): yes count is 94148, no count is 105852
6 Correct 621 ms 45380 KB 200000 token(s): yes count is 97163, no count is 102837

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Incorrect 8 ms 1228 KB expected NO, found YES [16th token]
2 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 810 ms 46800 KB 200000 token(s): yes count is 171404, no count is 28596
2 Incorrect 703 ms 41112 KB expected NO, found YES [22020th token]
3 Halted 0 ms 0 KB -