race.cpp: In function 'void DFS(int, int)':
race.cpp:15:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
15 | for(int i = 0 ; i < V[x].size();i++){
| ~~^~~~~~~~~~~~~
race.cpp: In function 'int Find(int)':
race.cpp:24:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
24 | for(int i = 0 ; i < V[x].size();i++){
| ~~^~~~~~~~~~~~~
race.cpp: In function 'void DFS2(int, int)':
race.cpp:44:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
44 | for(int i = 0 ; i < V[x].size();i++){
| ~~^~~~~~~~~~~~~
race.cpp: In function 'void decomposition(int)':
race.cpp:63:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
63 | for(int i = 0 ; i < V[centroid].size();i++){
| ~~^~~~~~~~~~~~~~~~~~~~
race.cpp:83:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
83 | for(int i = 0 ; i < V[centroid].size();i++){
| ~~^~~~~~~~~~~~~~~~~~~~
race.cpp: In function 'int best_path(int, int, int (*)[2], int*)':
race.cpp:98:1: warning: no return statement in function returning non-void [-Wreturn-type]
98 | }
| ^