Compilare: main.cpp:1: warning: ignoring '#pragma gcc target' [-Wunknown-pragmas] 1 | #pragma gcc target("Ofast,unroll-loops") | main.cpp:6: warning: ignoring '#pragma gcc target' [-Wunknown-pragmas] 6 | #pragma gcc target("Ofast,unroll-loops") | main.cpp: In function 'void makegrey(int, int)': main.cpp:30:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(i=0; i<s2.size(); i++) | ~^~~~~~~~~~ main.cpp: In function 'void makeindexes(int, int, int)': main.cpp:71:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for(i=0; i<s2.size(); i++) | ~^~~~~~~~~~ main.cpp: In function 'void dfs(int, int, int)': main.cpp:110:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 110 | for(i=0; i<adj[curr].size(); i++) | ~^~~~~~~~~~~~~~~~~ main.cpp:119:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 119 | for(i=0; i<adj[curr].size(); i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'void solveheavy()': main.cpp:159:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 159 | for(i=0;i<vecini.size();i++) | ~^~~~~~~~~~~~~~ main.cpp:164:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 164 | for(i=0;i<noduri.size();i++) | ~^~~~~~~~~~~~~~ main.cpp:171:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 171 | for(i=0;i<noduri.size();i++) | ~^~~~~~~~~~~~~~ main.cpp:183:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 183 | for(i=0;i<vecini.size();i++) | ~^~~~~~~~~~~~~~ main.cpp:199:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 199 | for(i=0;i<aux.size();i++) | ~^~~~~~~~~~~ main.cpp: In function 'void dfsheavy(int, int)': main.cpp:209:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 209 | for(int i=1;i<adj[curr].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfsnorm(int, int)': main.cpp:242:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 242 | for(i=0;i<adj[curr].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp:253:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 253 | for(i=0;i<adj[curr].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp:229:24: warning: unused variable 'k' [-Wunused-variable] 229 | int fii=2,biti=1,i,k,a,b;