Compilare: user.cpp: In function ‘int main()’: user.cpp:35:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<v[crt].size();j++){ ~^~~~~~~~~~~~~~ user.cpp:57:9: warning: this ‘else’ clause does not guard... [-Wmisleading-indentation] else; ^~~~ user.cpp:58:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘else’ sol[i] = a--; ^~~