Compilare: main.cpp: In function 'int main()': main.cpp:35:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(grad[i] == 0) ^~ main.cpp:37:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' fout << cnt; ^~~~ main.cpp:37:24: warning: 'cnt' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << cnt; ^