Compilare: main.cpp: In function 'int valid(int)': main.cpp:16:1: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if((s[i]==s[k]) || (fabs(s[k]-s[i])== k-i))return 0;return 1; } ^~ main.cpp:16:53: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' if((s[i]==s[k]) || (fabs(s[k]-s[i])== k-i))return 0;return 1; } ^~~~~~ main.cpp:15:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation] {for (int i=1; i<k; i++) ^~~ main.cpp:16:53: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' if((s[i]==s[k]) || (fabs(s[k]-s[i])== k-i))return 0;return 1; } ^~~~~~