Submission #839070

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
839070	2023-08-28 14:59:55	fanwen	Subway (info1cup19_subway)	C++17	0 / 100	0 ms	212 KiB

subway

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/**
 *      author : pham van sam 
 *      created : 28 August 2023 (Monday)
 **/
#include <bits/stdc++.h>
using namespace std;
#define int long long
void you_make_it(void) {
    int k, n = 1; cin >> k;
    for (int i = 1; 1LL * i * (i + 1) <= 2LL * k; ++i) {
      n = i;
    }
    int diff = k - 1LL * n * (n + 1) / 2;
    cout << n + 1 + (diff > 0) << '\n';
  for (int i = 0; i <= n; ++i) {
    cout << i << " " << i - 1 << '\n';
  }
    if(diff > 0) {
      cout << n + 1 << " " << diff  - 1 << '\n';
    }
}
signed main() {
#ifdef LOCAL
    freopen("TASK.inp", "r", stdin);
 
 
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• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50