Compilare: main.cpp: In function 'int main()': main.cpp:40:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | if(c[i] != a[i].size()) | ~~~~~^~~~~~~~~~~~~~ main.cpp:43:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | for(; c[i] < a[i].size() && a[i][c[i]] < p + 64; c[i] ++) { | ~~~~~^~~~~~~~~~~~~