Borderou de evaluare (job #810255)

Compilare: main.cpp: In function 'int main()': main.cpp:16:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'unsigned int'} [-Wsign-compare] 16 | for(int i=0; i<v.size(); i++) | ~^~~~~~~~~ main.cpp:21:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'unsigned int'} [-Wsign-compare] 21 | for(int i=0; i<v.size(); i++) | ~^~~~~~~~~ main.cpp:6:31: warning: unused variable 'i' [-Wunused-variable] 6 | {int k, k1, k2, a, b, i; | ^