Compilare: main.cpp: In function 'int maxi(int, int)': main.cpp:26:9: warning: unused variable 'a' [-Wunused-variable] 26 | int a=rmq[len][l],b=rmq[len][r-(1<<len)+1]; | ^ main.cpp:26:23: warning: unused variable 'b' [-Wunused-variable] 26 | int a=rmq[len][l],b=rmq[len][r-(1<<len)+1]; | ^ main.cpp: In function 'void solve(std::vector<int>)': main.cpp:35:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for(int i=1;i<v.size();i++) | ~^~~~~~~~~ main.cpp:56:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for(int i=1;i<v.size();i++) | ~^~~~~~~~~ main.cpp:78:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 78 | for(int i=0;i<v.size();i++) | ~^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:112:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 112 | for(int i=1;i<M[key.first].size();i++) | ~^~~~~~~~~~~~~~~~~~~~