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Submission #418184

# Submission time Handle Problem Language Result Execution time Memory
418184 2021-06-05T07:48:45 Z dolphingarlic Trampoline (info1cup20_trampoline) C++14
100 / 100
 1062 ms 58064 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 || y1 > y2) {
            cout << "No\n";
            continue;
        }
        if (x1 == x2) {
            cout << "Yes\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 1484 KB 200 token(s): yes count is 21, no count is 179
2 Correct 7 ms 1740 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 304 ms 27524 KB 4000 token(s): yes count is 99, no count is 3901
2 Correct 296 ms 27524 KB 4000 token(s): yes count is 91, no count is 3909
3 Correct 309 ms 27344 KB 4000 token(s): yes count is 4000, no count is 0
4 Correct 304 ms 27536 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 514 ms 27972 KB 200000 token(s): yes count is 110486, no count is 89514
2 Correct 535 ms 27980 KB 200000 token(s): yes count is 114664, no count is 85336
3 Correct 495 ms 27920 KB 200000 token(s): yes count is 86232, no count is 113768
4 Correct 504 ms 28172 KB 200000 token(s): yes count is 94603, no count is 105397
5 Correct 528 ms 28132 KB 200000 token(s): yes count is 94148, no count is 105852
6 Correct 593 ms 34180 KB 200000 token(s): yes count is 97163, no count is 102837

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1228 KB 5000 token(s): yes count is 3238, no count is 1762
2 Correct 8 ms 1228 KB 5000 token(s): yes count is 3837, no count is 1163
3 Correct 9 ms 1868 KB 5000 token(s): yes count is 4104, no count is 896
4 Correct 9 ms 1228 KB 5000 token(s): yes count is 3934, no count is 1066
5 Correct 10 ms 1356 KB 5000 token(s): yes count is 3384, no count is 1616
6 Correct 7 ms 1304 KB 5000 token(s): yes count is 3390, no count is 1610

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 802 ms 35592 KB 200000 token(s): yes count is 171404, no count is 28596
2 Correct 679 ms 29924 KB 200000 token(s): yes count is 161254, no count is 38746
3 Correct 515 ms 39364 KB 200000 token(s): yes count is 117455, no count is 82545
4 Correct 1062 ms 58064 KB 200000 token(s): yes count is 182118, no count is 17882
5 Correct 723 ms 45956 KB 200000 token(s): yes count is 167565, no count is 32435
6 Correct 633 ms 39364 KB 200000 token(s): yes count is 156797, no count is 43203
7 Correct 614 ms 39416 KB 200000 token(s): yes count is 156797, no count is 43203
8 Correct 589 ms 39312 KB 200000 token(s): yes count is 122100, no count is 77900
9 Correct 840 ms 45528 KB 200000 token(s): yes count is 139670, no count is 60330
10 Correct 898 ms 45508 KB 200000 token(s): yes count is 165806, no count is 34194
11 Correct 988 ms 51780 KB 200000 token(s): yes count is 175646, no count is 24354
12 Correct 559 ms 39324 KB 200000 token(s): yes count is 134695, no count is 65305
13 Correct 551 ms 39396 KB 200000 token(s): yes count is 126733, no count is 73267
14 Correct 676 ms 39416 KB 200000 token(s): yes count is 155290, no count is 44710
15 Correct 586 ms 39272 KB 200000 token(s): yes count is 129674, no count is 70326