C语言：常见题目和常用代码，交换数字，输出倒序数
#include <stdio.h>
int main()
{
int a=1;
int b=2;
int c;
c=a;
a=b;
printf("a=%d,b=%d",a,c);
}
#include <stdio.h>
int main(){
int a=1;
int b=2;
a=b+a;
b=a-b;
a=a-b;
printf("a=%d,b=%d",a,b);
return 0;}
#include <stdio.h>
int main(){ int a;
printf("请输入一个三位数");
;
scanf("%d",&a);
int c,d,e,b;
b=a/100+(a/10)%10*10+a%10*100;
c=a/100;
d=(a/10)%10;
e=a%10;
printf("个%d",c);
printf("十%d",d);
printf("百%d\n",e);
printf("%d",b);
return 0;
}
#include <stdio.h>
int main(){ int a;
printf("请输入一个六位数");
;
scanf("%d",&a);
int c,d,e,f,g,h,x,y,z;
c=a/100000;
d=(a/10000)%10;
e=a/1000-c*100-d*10;
f=a/100-c*1000-d*100-e*10;
g=a/10-c*10000-d*1000-e*100-f*10;
h=a-c*100000-d*10000-e*1000-f*100-g*10;
x=c*100+d*10+e;
y= f*100+g*10+h;
z=x+y;
printf("%d\n",x);
printf("%d\n",y);
printf("和%d",z);
return 0;
}
#include <stdio.h>
int main(){ int a;
printf("请输入一个六位数");
;
scanf("%d",&a);
int c,d,e,f,g,h,x,y,z;
c=a/100000;
d=(a/10000)%10;
e=a/1000%100%10;
f=a/100%1000%100%10;
g=a/10%100000%1000%100%10;
h=a%1000000%100000%1000%100%10;
x=c*100+d*10+e;
y= f*100+g*10+h;
z=x+y;
printf("%d\n",x);
printf("%d\n",y);
printf("和%d",z);
return 0;
}
#include <stdio.h>
int main(){ int a;
printf("请输入一个六位数");
;
scanf("%d",&a);
int x,y,z;
x=a/1000;
y= a%1000;
z=x+y;
printf("%d\n",x);
printf("%d\n",y);
printf("和%d",z);
return 0;
}
#include <stdio.h>
int main(){ int a;
printf("请输入一个六位数");
;
scanf("%d",&a);
int c,d,e,f,g,h,x,y,z,i;
c=a/100000;
d=(a/10000)%10;
e=a/1000%100%10;
f=a/100%1000%100%10;
g=a/10%100000%1000%100%10;
h=a%1000000%100000%1000%100%10;
x=c*10+d;
y= e*10+f;
z=g*10+h;
i=x+y+z;
printf("%d\n",x);
printf("%d\n",y);
printf("%d\n",z);
printf("%d",i);
return 0;
}
#include <stdio.h>
int main(){
int a=1000;
do{
if(a%3==2&&a%5==4&&a%7==6){
printf("人数为%d",a);
}a=a+1;
}while(a<=1100);
return 0;
}
#include <stdio.h>
int main(){
int a=1000;
while(a<=1100){ if(a%3==2&&a%5==4&&a%7==6)
printf("人数为%d",a);
a=a+1;
}
return 0;
}
