2019/11/10

交换两个整型变量

#include<stdint.h>
#include<stdlib.h>



int main(){
	
	int  x , y ,t;
	printf("输入两个数:");
	scanf("%d%d", &x, &y);
	t = x;
	x = y;
	y = t;
	printf("交换两个数:%d %d", x, y);

	system("pause");
	return 0;
}

求两个数的最大公约数

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

int main(){
	
	int a , b ,c=1;
	printf("输入两个数:");
	scanf("%d%d", &a, &b);
	for (int i = 2; i <= a && i <= b;i++){			//i大于两个数较小值时退出循环
		if ((a%i == 0) && (b%i ==0)){				//i能被两个数同时整除,i的值赋给c
			c = i;
		}
		else
			continue;
	}
	printf("%d\n", c);


	system("pause");
	return 0;
}

求10 个整数中最大值

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<stdlib.h>
int main(){
	int i = 0;
	int x = 0;
	int a[10];
	printf("请输入10个整数：");
	for (i = 0; i < 10; i++){
		scanf("%d", &a[i]);
	}
	for (i = 0; i < 10; i++){
		if (a[i] > x){
			x = a[i];
		}
	}
	printf("大值为：%d\n", x);
	system("pause");
	return 0;
}

将三个数按从大到小输出

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

int main(){

	int a = 0, b = 0, c = 0;
	printf("输入三个数:");
	scanf("%d%d%d", &a, &b, &c);
	if (a < b){
		int t = a;
		a =b;
		b = t;
	}
	if (a < c){
		int t = a;
		a = c;
		c = t;
	}
	if (b < c){
		int t = b;
		b = c;
		c= t;
	}
	printf("%d %d %d \n",a, b, c);
	system("pause");
	return 0;
}