Compilare: main.cpp: In function 'void construireTriunghi()': main.cpp:20:16: warning: unused variable 'cy' [-Wunused-variable] 20 | int y = N, cy, it = N; | ^~ main.cpp: In function 'int main()': main.cpp:85:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | for (int i = 0; i < triunghi.size(); i++) | ~~^~~~~~~~~~~~~~~~~