Compilare: main.cpp: In function 'void solve()': main.cpp:51:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < MaP[i.first].size(); ++j) { ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:52:94: warning: variable 'prod' set but not used [-Wunused-but-set-variable] ll l = MaP[i.first][j].left, r = MaP[i.first][j].right, p = MaP[i.first][j].poz, behind, prod; ^~~~ main.cpp: In function 'int main()': main.cpp:67:6: warning: unused variable 'add' [-Wunused-variable] str add; ^~~