Compilare: main.cpp: In function 'int main()': main.cpp:89:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v.size() == k) ~~~~~~~~~^~~~ main.cpp:94:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v.size(); i++) ~~^~~~~~~~~~ main.cpp:94:21: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i = 0; i < v.size(); i++) ^~~ main.cpp:96:25: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' i = 2 * l + 1; ^