#include <iostream> #include <string> #include <algorithm> #include <cmath> #include <climits> #include <iomanip> #include <vector> using namespace std; // P.Moriarty // #define AAD ios_base::sync_with_stdio(0); cin.tie(nullptr); cout.tie(nullptr); long long fac(int n) { long long fact = 1; for (int i = 1;i <= n;i++) { fact *= i; } return fact; } long long per(int n, int j) { long long p = 1; for (int i = n; i > n - j; i--) { p *= i; } return p; } bool lucky(int ch) { bool l = true; while (ch > 0) { int d = ch % 10; if (d == 7 || d == 4) { ch /= 10; } else { l = false; break; } } return l; } int pro(int x, int i) { int r = 1; for (int j = 1;j <= i;j++) { r *= x; } return r; } bool prime(int x) { if (x <= 1) return false; if (x == 2 || x == 3) return true; if (x % 2 == 0 || x % 3 == 0) return false; for (int i = 5; i <= sqrt(x); i += 6) { if (x % i == 0 || x % (i + 2) == 0) return false; } return true; } int f(string a, string b) { int c = 0; for (int i = 0;i < a.size();i++) { if (a[i] == b[i]) c++; } return c; } int main() { AAD; int n; cin >> n; vector<pair<long long, long long>> p(n); for (int i = 0; i < n; i++) { cin >> p[i].first >> p[i].second; } sort(p.begin(), p.end()); long long l = p[0].first, r = p[0].second; vector<pair<long long, long long>> result; for (int i = 1; i < n; i++) { if (l <= p[i].first && r >= p[i].first && r < p[i].second) { r = p[i].second; } else { result.push_back(pair<long long, long long>(l, r)); l = p[i].first; r = p[i].second; } } for (int i = 0; i < result.size(); ++i) { cout << result[i].first << " " << result[i].second << endl; } cout << l << " " << r << endl; }
Standard input is empty
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