dango3.cpp: In function 'void solve(std::vector<int>)':
dango3.cpp:11:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
11 | if(el.size()==n){
| ~~~~~~~~~^~~
dango3.cpp:19:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
19 | for(int i=0;i<el.size();i++){
| ~^~~~~~~~~~
dango3.cpp:32:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
32 | for(int f=0;f<d.size();f++){
| ~^~~~~~~~~
dango3.cpp:41:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
41 | for(int i=0;i<d.size();i++){
| ~^~~~~~~~~
dango3.cpp:46:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
46 | for(int i=0;i<el.size();i++){
| ~^~~~~~~~~~