Compilare: main.cpp: In function 'int main()': main.cpp:48:13: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int j=i;j<=i;j++) ^~~ main.cpp:50:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' int k=0; ^~~ main.cpp: In function 'bool solve(int)': main.cpp:24:1: warning: control reaches end of non-void function [-Wreturn-type] } ^