Compilare: main.cpp: In function 'int main()': main.cpp:13:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(a == s && ok > 0) ^~ main.cpp:15:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' ok = 0; ^~ main.cpp:19:31: warning: 'nr' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << t << " " << nr << " " << 2 * s; ^~~ main.cpp:19:18: warning: 't' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << t << " " << nr << " " << 2 * s; ^~~