dna.cpp: In function 'int main()':
dna.cpp:39:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
39 | for(int i=0; i<v.size(); i++){
| ~^~~~~~~~~
dna.cpp:40:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
40 | for(int j=0; j<v.size(); j++){
| ~^~~~~~~~~
dna.cpp:49:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
49 | for(int x = 0; x < req.size(); x++) {
| ~~^~~~~~~~~~~~
dna.cpp:36:9: warning: variable 'tmp' set but not used [-Wunused-but-set-variable]
36 | int tmp=0;
| ^~~