Compilare: main.cpp: In function 'void solve(int)': main.cpp:27:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<mm[asta].size();i++){ ~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:46:1: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=2;i<=n;i++) ^~~ main.cpp:51:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' return 0; ^~~~~~