Compilare: main.cpp: In function 'void cer1()': main.cpp:44:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for (int i = 0; i < graf[prec].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void cer2()': main.cpp:91:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<val>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 91 | for (int i = 0; i < muchii.size() && nrC < n; i++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void cer3()': main.cpp:128:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<val>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 128 | for (int i = 0; i < muchii.size() && nrC < n; i++) | ~~^~~~~~~~~~~~~~~