Compilare: main.cpp: In function 'bool check(int)': main.cpp:53:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for (int i = 0; i < v.size(); i++) { | ~~^~~~~~~~~~ main.cpp:54:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | while (idx < v.size() && v[i] + d >= v[idx]) | ~~~~^~~~~~~~~~ main.cpp:58:23: warning: comparison of integer expressions of different signedness: 'std::deque<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 58 | if (dq.size() < k) | ~~~~~~~~~~^~~ main.cpp: In function 'void bs()': main.cpp:75:13: warning: 'sol' may be used uninitialized [-Wmaybe-uninitialized] 75 | fout << sol; | ^~~ main.cpp:64:22: note: 'sol' was declared here 64 | int left, right, sol; | ^~~