#include<stdio.h>
int main(){
//计算n+(n-1)+(n-2)+........+3+2+1
int number;
int sum=0;
printf("请输入一个正整数:");
scanf("\n%d",&number);
if(number>0){
while(number>0){
sum+=number;
number=number-1;//数字越加越小,直到一
}
printf("\n和=%d\n",sum);
}
else{
printf("\n%d无效\n",number);
}
return 0;
}
C语言计算n+(n-1)+(n-2)+........+3+2+1
猜你喜欢
转载自blog.csdn.net/qq_35207086/article/details/110244030
今日推荐
周排行