meetings.cpp: In function 'void findpath(std::vector<int>)':
meetings.cpp:8:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
8 | #define f(i,a,b) for(int i=a;i<b;i++)
......
43 | f(i,2,p.size()){
| ~~~~~~~~~~~~
meetings.cpp:43:2: note: in expansion of macro 'f'
43 | f(i,2,p.size()){
| ^
meetings.cpp:8:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
8 | #define f(i,a,b) for(int i=a;i<b;i++)
......
58 | f(i,0,res.size()){
| ~~~~~~~~~~~~~~
meetings.cpp:58:3: note: in expansion of macro 'f'
58 | f(i,0,res.size()){
| ^
meetings.cpp:62:7: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
62 | if(r==res.size()) pes.pb(u);
| ~^~~~~~~~~~~~
meetings.cpp:45:7: warning: variable 'l' set but not used [-Wunused-but-set-variable]
45 | int l,r;
| ^
meetings.cpp:8:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
8 | #define f(i,a,b) for(int i=a;i<b;i++)
......
65 | f(i,1,res.size()){
| ~~~~~~~~~~~~~~
meetings.cpp:65:2: note: in expansion of macro 'f'
65 | f(i,1,res.size()){
| ^
meetings.cpp: In function 'void solve(std::vector<int>)':
meetings.cpp:8:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
8 | #define f(i,a,b) for(int i=a;i<b;i++)
......
84 | f(i,0,e.size()){
| ~~~~~~~~~~~~
meetings.cpp:84:2: note: in expansion of macro 'f'
84 | f(i,0,e.size()){
| ^
meetings.cpp:86:7: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
86 | if(i==e.size()-1 || e[i].F!=e[i+1].F){
| ~^~~~~~~~~~~~