From d3004aa5f54faad59a57c60bcf0d97262e31397b Mon Sep 17 00:00:00 2001
From: psfpur5z4 <2287687348@qq.com>
Date: Sun, 26 Nov 2023 19:39:24 +0800
Subject: [PATCH] ADD file via upload

---
 main.c | 218 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 218 insertions(+)
 create mode 100644 main.c

diff --git a/main.c b/main.c
new file mode 100644
index 0000000..acad722
--- /dev/null
+++ b/main.c
@@ -0,0 +1,218 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+void fac(int n){
+	int i;
+	unsigned long long res=1;
+	for(i=1; i<=n; i++){
+		res*=i;
+	}
+	printf("%d!=%llu",n,res);
+}//n的阶乘
+void judge_prime(int n){
+	int i;
+	int k=sqrt(n);
+	for(i=2; i<=k; i++){
+		if(n%i==0){
+			break;
+		}
+	}
+	if(i>k){
+		printf("This is prime!");
+	}else{
+		printf("This is not prime!");
+	}
+} //判断素数 
+void V_sphere(int r){
+	printf("The volume of the ball is%f",(4*r*r*r)/3.0);
+}//球的体积 
+long long fic(int n){
+	long long y;
+	if(n==1||n==2){
+		y=1;
+	}else{
+		y=fic(n-1)+fic(n-2);
+	}
+	return y;
+}//求斐波那契数列的第n项值
+/*double index1(int x,int n){
+	int i;
+	double result;
+	if(n=0){
+		result=1;
+	}else if(n>0){
+		for(i=0; i<n; i++){
+			result*=x;
+		}
+	}else{
+		result=1/index(-x,n);
+	}
+	return result;
+}//求x的n次方*/
+int GCD(int a, int b){
+	int t;
+	while(a%b){
+		t=b;
+		b=a%b;
+		a=b;
+	}
+	return b;
+}//求最大公约数 
+void LCM(int a, int b){
+	int i;
+	int t,loc=0;
+	if(a>b){
+		t=a;
+		a=b;
+		b=t;
+	}
+	for(i=2; i<=a; i++){
+		if(a%i==0&&b%i==0){
+			printf("%d与%d的最小公倍数为%d",a,b,i);
+			loc=1;
+			break;
+		}
+	}
+	if(loc==0){
+		printf("%d与%d的最小公倍数为1",a,b);
+	}
+}//求最小公倍数
+void swap(int *a,int *b){
+	int t;
+	t=*a;
+	*a=*b;
+	*b=t;
+}//交换两个数的值
+void sort(int a[],int len){
+	int i,j,t;
+	for(i=0; i<len; i++){
+		for(j=i+1; j<len; j++){
+			if(a[i]>a[j]){
+				t=a[i];
+				a[i]=a[j];
+				a[j]=t;
+			}
+		}
+	}
+}//数组从小到大排序 
+int main(int argc, char *argv[]) {
+	int n;
+	int a[1000000];
+	int k,i;
+	int x1,x2;
+	long long y;
+	double z;
+	printf("请输入你要进行的运算：\n");
+	printf("1.四则运算\n");
+	printf("2.求模运算\n");
+	printf("3.求n的阶乘\n");
+	printf("4.判断素数\n");
+	printf("5.求半径为n的球的体积\n");
+	printf("6.求斐波那契数列的第n项值\n");
+	printf("7.求x的n次方\n");
+	printf("8.求两个数最大的公约数\n");
+	printf("9.求两个数的最小公倍数\n");
+	printf("10.交换两个数\n");
+	printf("11.对输入的n个数排序\n"); 
+	scanf("%d",&n);
+	switch(n){
+		case 1:
+			printf("请选择你要进行的运算方式\n");
+			printf("1.加法\n");
+			printf("2.减法\n");
+			printf("3.乘法\n");
+			printf("4.除法\n");
+			scanf("%d",&k);
+			if(k==1){
+				printf("请输入两个加数：\n");
+				scanf("%d%d",&x1,&x2);
+				printf("%d+%d=%d\n",x1,x2,x1+x2);
+			}else if(k==2){
+				printf("请输入被减数与减数：\n");
+				scanf("%d%d",&x1,&x2);
+				printf("%d-%d=%d\n",x1,x2,x1-x2);
+			}else if(k==3){
+				printf("请输入两个乘数：\n");
+				scanf("%d%d",&x1,&x2);
+				printf("%d*%d=%d\n",x1,x2,x1*x2);
+			}else if(k==4){
+				out:
+				printf("请输入被除数与除数：\n");
+				scanf("%d%d",&x1,&x2);
+				if(x2==0){
+					printf("输入错误,无法计算,请重新输入\n");
+					goto out;
+				}else{
+					printf("%d÷%d=%f\n",x1,x2,x1/(double)x2);
+				}
+				
+			}
+			break;
+		case 2:
+			printf("请输入取模的两个数：\n");
+			scanf("%d%d",&x1,&x2);
+			printf("%d%%%d=%d\n",x1,x2,x1%x2);
+			break;
+		case 3:
+			printf("请输入要求阶乘的数字：\n");
+			scanf("%d",&x1);
+			fac(x1);
+			break;
+		case 4:
+			printf("请输入数字：\n");
+			scanf("%d",&x1);
+			judge_prime(x1);
+			break;
+		case 5:
+			printf("请输入半径：\n");
+			scanf("%d",&x1);
+			V_sphere(x1);
+			break;
+		case 6:
+			printf("请问需要求斐波那契数列的第几项值：\n");
+			scanf("%d",&x1);
+			y=fic(x1);
+			printf("斐波那契数列的第%d项值为%lld",x1,y);
+			break;
+		case 7:
+			printf("请依次输入x和n的值：\n");
+			scanf("%d%d",&x1,&x2);
+			//z=index1(x1,x2);
+			z=pow(x1,x2);
+			printf("%d的%d次方为%f",x1,x2,z);
+			break;
+		case 8:
+			printf("请输入两个数：\n");
+			scanf("%d%d",&x1,&x2);
+			y=GCD(x1,x2);
+			printf("%d和%d最大公约数为%lld",x1,x2,y);
+			break;
+		case 9:
+			printf("请输入两个数：\n");
+			scanf("%d%d",&x1,&x2);
+			LCM(x1,x2);
+			break;
+		case 10:
+			printf("请输入需要交换的两个数：\n");
+			scanf("%d%d",&x1,&x2);
+			swap(&x1,&x2);
+			printf("%d %d",x1,x2);
+			break;
+		case 11:
+			printf("请问需要对几个数进行排序：\n");
+			scanf("%d",&k);
+			printf("请输入这些数字并用空格隔开：\n");
+			for(i=0; i<k; i++){
+				scanf("%d",&a[i]);
+			}
+			sort(a,k);
+			printf("排序完成，输出为：\n");
+			for(i=0; i<k; i++){
+				printf("%d ",a[i]);
+			}
+			break;											
+	}
+	printf("\n");
+	printf("运算完毕.");
+	return 0;
+}