Compilare: main.cpp: In function 'void dfs(int)': main.cpp:38:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for(int i = 0; i < v[nod].size(); i++){ | ~~^~~~~~~~~~~~~~~ main.cpp:44:42: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 44 | if(l[pl[cop].f].d.size() > maxim){ | ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~ main.cpp:53:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for(int i = 0; i < v[nod].size(); i++){ | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void build(int, int)': main.cpp:64:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 64 | if(st < l[ind].d.size()){ | ~~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'void solve()': main.cpp:168:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 168 | for(int j = 0; j < l[i].d.size(); j++){ | ~~^~~~~~~~~~~~~~~ main.cpp:171:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 171 | while(l[i].nr < l[i].d.size()){ | ~~~~~~~~^~~~~~~~~~~~~~~ main.cpp: In function 'void dfs(int)': main.cpp:55:13: warning: 'pmax' may be used uninitialized [-Wmaybe-uninitialized] 55 | if(cop != pmax){ | ^~ main.cpp:37:24: note: 'pmax' was declared here 37 | int maxim = 0, pmax, cop; | ^~~~ In function 'int queryrmq(int, int)', inlined from 'int lca(int, int)' at main.cpp:143:20: main.cpp:117:5: warning: 'rez' may be used uninitialized [-Wmaybe-uninitialized] 117 | if(deep[nod] == depth){ | ^~ main.cpp: In function 'int lca(int, int)': main.cpp:131:14: note: 'rez' was declared here 131 | int mij, rez; | ^~~