Main.cc: In function 'int main()': Main.cc:6:11: error: expected ';' before '>' token for(int i>3;i<=n-1;i++){ ^ Main.cc:6:11: error: expected primary-expression before '>' token Main.cc:6:15: warning: for increment expression has no effect [-Wunused-value] for(int i>3;i<=n-1;i++){ ^ Main.cc:6:20: error: expected ')' before ';' token for(int i>3;i<=n-1;i++){ ^ Main.cc:6:21: error: 'i' was not declared in this scope for(int i>3;i<=n-1;i++){ ^