paint.cpp: In function 'int minimumInstructions(int, int, int, std::vector<int>, std::vector<int>, std::vector<std::vector<int> >)':
paint.cpp:53:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
53 | for(j=0;j<vv.sz;j++){
| ^
paint.cpp:55:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
55 | if(low<v[c[i]].sz && v[c[i]][low]==vv[j]+1)nv.pb(vv[j]+1);
| ^
paint.cpp:58:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
58 | for(j=0;j<v[c[i]].sz;j++){
| ^
paint.cpp:60:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
60 | if(low<vv.sz && vv[low]==v[c[i]][j]-1)nv.pb(v[c[i]][j]);
| ^
paint.cpp:50:16: warning: unused variable 'x' [-Wunused-variable]
50 | ll x=0,y=0;
| ^
paint.cpp:50:20: warning: unused variable 'y' [-Wunused-variable]
50 | ll x=0,y=0;
| ^