Compilare: main.cpp: In function 'void dfs1(int)': main.cpp:10:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 10 | for(int i = 0; i < c[x].size(); i++){ | ~~^~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int)': main.cpp:19:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for (int i = 0; i < c[x].size(); i++) | ~~^~~~~~~~~~~~~ main.cpp:22:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for(int i = 0; i < c[x].size(); i++) | ~~^~~~~~~~~~~~~ main.cpp:24:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(int i = 0; i < c[x].size(); i++){ | ~~^~~~~~~~~~~~~ main.cpp:18:33: warning: array subscript 16001 is above array bounds of 'int [16001]' [-Warray-bounds] 18 | sel2[x] = true, mx[16001] = 0; | ~~~~~~~~^ main.cpp:5:18: note: while referencing 'mx' 5 | int n, h[16001], mx[16001], res = (1 << 30), hm, n1, n2; | ^~