Main.cc: In function ‘int main()’: Main.cc:7:12: error: expected primary-expression at end of input if(a%6==0|| ^~ Main.cc:7:12: error: expected ‘)’ at end of input Main.cc:7:12: error: expected statement at end of input Main.cc:7:3: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation] if(a%6==0|| ^~ cc1plus: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’ Main.cc:7:12: error: expected ‘}’ at end of input if(a%6==0|| ^~ Main.cc:4:10: warning: unused variable ‘i’ [-Wunused-variable] int a,b,i=0; ^ Main.cc:7:12: error: expected ‘}’ at end of input if(a%6==0|| ^~ Main.cc:5:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&a,&b); ~~~~~^~~~~~~~~~~~~~~