Compilare: main.cpp: In function 'int main()': main.cpp:45:23: 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:53:23: 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:61:23: 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:70:23: 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:75:15: 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:99:15: 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();) | ~~~~^~~~~~~~~~~