Compilare: main.cpp: In function 'int main()': main.cpp:45:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for(int i = 1; i < in.size(); i++) | ~~^~~~~~~~~~~ main.cpp:53:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for(int i = 1; i < a.size(); i++) | ~~^~~~~~~~~~ main.cpp:61:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for(int i = 1; i < b.size(); i++) | ~~^~~~~~~~~~ main.cpp:70:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 70 | for(int i = 1; i < ab.size(); i++) | ~~^~~~~~~~~~~ main.cpp:75:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 75 | for(; nrab <= ab.size(); nrab++) | ~~~~~^~~~~~~~~~~~ main.cpp:80:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | if (nra <= a.size() && nrb <= b.size() && nrab + nra + nrb <= s) | ~~~~^~~~~~~~~~~ main.cpp:80:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | if (nra <= a.size() && nrb <= b.size() && nrab + nra + nrb <= s) | ~~~~^~~~~~~~~~~ main.cpp:99:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 99 | for(; nrab <= ab.size();) | ~~~~~^~~~~~~~~~~~