Compilare: main.cpp: In function 'int main()': main.cpp:21:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=1;i<=n;i++) ^~~ main.cpp:22:23: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' n2=n2*10+b[i];if(n1-n2<0)break; ^~