cleaning.cpp: In function 'int getleaf(int)':
cleaning.cpp:26:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
26 | for(int i=0;i<son[v].size();i++) {
| ~^~~~~~~~~~~~~~
cleaning.cpp: In function 'void dfs(int, int)':
cleaning.cpp:51:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
51 | for(int i=0;i<adj[v].size();i++) {
| ~^~~~~~~~~~~~~~
cleaning.cpp: In function 'int main()':
cleaning.cpp:125:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
125 | for(int j=0;j<son[rev[i]].size();j++) {
| ~^~~~~~~~~~~~~~~~~~~
cleaning.cpp:152:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
152 | for(int j=0;j<save0.size();j++) {
| ~^~~~~~~~~~~~~
cleaning.cpp:157:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
157 | for(int j=0;j<save.size();j++) {
| ~^~~~~~~~~~~~
cleaning.cpp:171:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
171 | for(int j=0;j<save.size();j++) {
| ~^~~~~~~~~~~~
cleaning.cpp:178:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
178 | for(int j=0;j<save0.size();j++) {
| ~^~~~~~~~~~~~~
cleaning.cpp:91:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
91 | scanf("%d %d",&n,&q);
| ~~~~~^~~~~~~~~~~~~~~
cleaning.cpp:95:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
95 | scanf("%d %d",&u,&v);
| ~~~~~^~~~~~~~~~~~~~~
cleaning.cpp:135:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
135 | scanf("%d",&k);
| ~~~~~^~~~~~~~~
cleaning.cpp:141:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
141 | scanf("%d",&v);
| ~~~~~^~~~~~~~~