252452026-02-18 19:34:55algoproFagyasztócpp17Wrong answer 30/753ms564 KiB
// UUID: bb3d240d-f4fc-4a0f-a58e-072b3cf49cdd
#include <bits/stdc++.h>
using namespace std;

int main() {
	int n; cin >> n;
    vector<vector<int>> etel(n, vector<int>(3));
    vector<bool> used(n);
    for (int i = 0; i < n; i++) {
        cin >> etel[i][0] >> etel[i][1];
        etel[i][2] = i + 1;
    }
    sort(etel.begin(), etel.end());

    int nap = 1;
    int i = 0;
    vector<pair<int, int>> inds;
    while (true) {
        while (i < n && (used[i] || nap > etel[i][0] || 4 > etel[i][1])) {
            i++;
        }
        //cout << i << " ";
        if (i == n) {
            nap--;
            break;
        }
        used[i] = true;

        int j = i + 1;
        while (j < n && (used[j] || 4 > etel[j][1] || etel[i][1] + etel[j][1] < 9)) {
            j++;
        }
        //cout << j << "\n";
        if (j == n) {
            nap--;
            break;
        }
        used[j] = true;
        inds.push_back({i, j});
        i++;
        nap++;
    }

    cout << nap << "\n";
    for (auto [a, b] : inds) {
        cout << etel[a][2] << " " << etel[b][2] << "\n";
    }
}
SubtaskSumTestVerdictTimeMemory
subtask10/0
1Accepted1ms508 KiB
subtask210/10
2Accepted1ms316 KiB
3Accepted1ms316 KiB
4Accepted1ms316 KiB
5Accepted1ms508 KiB
6Accepted1ms316 KiB
7Accepted1ms404 KiB
8Accepted1ms316 KiB
9Accepted1ms560 KiB
10Accepted1ms316 KiB
11Accepted1ms316 KiB
subtask320/20
12Accepted1ms508 KiB
13Accepted1ms500 KiB
14Accepted1ms332 KiB
15Accepted1ms316 KiB
16Accepted1ms316 KiB
17Accepted1ms420 KiB
18Accepted1ms500 KiB
19Accepted1ms344 KiB
20Accepted1ms316 KiB
21Accepted1ms316 KiB
22Accepted1ms316 KiB
23Accepted2ms316 KiB
24Accepted2ms316 KiB
25Accepted1ms316 KiB
26Accepted1ms512 KiB
27Accepted2ms480 KiB
28Accepted2ms468 KiB
29Accepted1ms316 KiB
30Accepted2ms316 KiB
31Accepted2ms316 KiB
subtask40/15
32Accepted1ms316 KiB
33Accepted1ms316 KiB
34Accepted1ms508 KiB
35Wrong answer1ms316 KiB
36Accepted1ms316 KiB
37Accepted1ms316 KiB
38Wrong answer1ms324 KiB
39Accepted1ms316 KiB
40Accepted1ms316 KiB
41Accepted2ms316 KiB
42Accepted1ms316 KiB
43Wrong answer2ms336 KiB
44Accepted1ms316 KiB
45Accepted1ms316 KiB
46Accepted2ms316 KiB
subtask50/15
47Accepted1ms332 KiB
48Accepted1ms316 KiB
49Wrong answer1ms316 KiB
50Accepted1ms564 KiB
51Accepted1ms316 KiB
52Accepted1ms316 KiB
53Wrong answer1ms316 KiB
54Accepted1ms508 KiB
55Accepted1ms316 KiB
56Accepted1ms316 KiB
57Accepted1ms316 KiB
58Wrong answer1ms332 KiB
59Wrong answer1ms324 KiB
60Accepted2ms552 KiB
61Accepted1ms316 KiB
subtask60/15
62Accepted1ms508 KiB
63Accepted1ms316 KiB
64Accepted2ms508 KiB
65Wrong answer2ms500 KiB
66Accepted3ms316 KiB
67Accepted1ms316 KiB
68Accepted2ms508 KiB
69Wrong answer2ms316 KiB
70Wrong answer1ms360 KiB
71Wrong answer2ms344 KiB
72Accepted1ms500 KiB
73Wrong answer2ms316 KiB
74Accepted1ms316 KiB
75Accepted2ms316 KiB
76Accepted1ms316 KiB