Compilare: user.cpp: In function ‘int f(int, int)’: user.cpp:20:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(size_t k=0;k<v.size();++k) ^~~ user.cpp:22:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ return cnt; ^~~~~~