C language guessing numbers game

Guess the number game （1-100）

#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
#include <time.h>
#include <stdlib.h>

void menu()
{
    
	printf("###########################\n");
	printf("######1.play 0.exit######\n");
	printf("###########################\n");
}
void game()
{
    
	int ret;
	int guess;
	ret=rand() % 100 + 1;  // Generate random number 1-100
	while (1)
	{
    
		printf(" Guess the number ->");
		scanf("%d", &guess);
		if (guess > ret)
			printf(" Guess the \n");
		else if (guess < ret)
			printf(" Guess a little \n");
		else
		{
    
			printf(" correct \n");
			break;
		}
	}
}

int main()
{
    
	int input;
	do
	{
    
		srand((unsigned int)time(NULL));  // Time stamp , Design of random starting point 
		menu();
		printf(" Game or not ：");
		scanf("%d",&input);
		switch (input)
		{
    
		case 1:
			game();
			break;
		case 0:
			printf(" Quit the game ！！！\n");
			break;
		default:
			printf(" Incorrect input , Re input ：\n");
			break;
		}			
	} while (input);
	return 0;
}