Compilare: main.cpp: In function 'int main()': main.cpp:29:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(j = 0; j < t[arr ^ 1][i].size(); j ++) | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:39:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(j = start; j < t[arr][i].size(); j += 10) | ~~^~~~~~~~~~~~~~~~~~