Compilare: main.cpp: In function 'void sol1(int)': main.cpp:59:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | for(int i = 0; i < nd[clr].size(); i++) { | ~~^~~~~~~~~~~~~~~~ main.cpp:60:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for(int j = i + 1; j < nd[clr].size(); j++) { | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:131:27: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 131 | if(j + (1 << i) - 1 <= poz) | ^