Compilare: main.cpp: In function 'void dfs(long long int, long long int)': main.cpp:34:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for(int i=0;i<g[nod].size();i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'void reroot(long long int)': main.cpp:54:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for(int i=0;i<g[nod].size();i++) | ~^~~~~~~~~~~~~~ main.cpp:64:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 64 | for(int i=0;i<g[nod].size();i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'void buildrmq()': main.cpp:96:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 96 | for(int i=0;i<euler.size();i++) rmq[i][0]=euler[i]; | ~^~~~~~~~~~~~~ main.cpp:97:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 97 | for(int j=1;(1<<j)<=euler.size();j++) | ~~~~~~^~~~~~~~~~~~~~ main.cpp:99:29: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 99 | for(int i=0;i+(1<<j)<=euler.size();i++) | ~~~~~~~~^~~~~~~~~~~~~~ main.cpp: In function 'void buildsum(long long int)': main.cpp:121:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 121 | for(int i=0;i<g[nod].size();i++) | ~^~~~~~~~~~~~~~