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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. int main() {
  4. int N; cin >> N;
  5. long long m, v, ma = -1e18, mi = 1e18;
  6. for (int i = 0; i < N; i++) {
  7. cin >> m >> v;
  8. long long t = m + v;
  9. if (t > ma) ma = t;
  10. if (t < mi) mi = t;
  11. }
  12. cout << ma - mi;
  13. }
  14.  
Success #stdin #stdout 0.01s 5320KB
stdin
2
6 9
0 2
stdout
13