ZOJ 1763: A Simple Question of Chemistry 【位数问题setprecision】
2015-01-10 21:41
381 查看
只是将后面的一个数字键前面的数字即可对小数点的处理频繁输出 printf 比 cout 快
printf 控制小数点位数:printf("%*.*f",a);cout 输出小数点后n位:cout.precision(2);//设置精度为2位cout <<fixed<<b-a;//fixed表示定点输出
setprecision(n) 表示浮点输出时指有效位数表示定点输出时指小数位数表示指数输出时指小数位数
#include <iostream>
#include <stdio.h>
using namespace std;
int main()
{
double a,b;
cin>>a;
while(cin>>b)
{
if(b==999)
{
printf("End of Output\n");
break;
}
printf("%.2f\n",(b-a));
a=b;
}
return 0;
}
printf 控制小数点位数:printf("%*.*f",a);cout 输出小数点后n位:cout.precision(2);//设置精度为2位cout <<fixed<<b-a;//fixed表示定点输出
setprecision(n) 表示浮点输出时指有效位数表示定点输出时指小数位数表示指数输出时指小数位数
#include <iostream>
#include <stdio.h>
using namespace std;
int main()
{
double a,b;
cin>>a;
while(cin>>b)
{
if(b==999)
{
printf("End of Output\n");
break;
}
printf("%.2f\n",(b-a));
a=b;
}
return 0;
}
相关文章推荐
- zoj 1763 A Simple Question of Chemistry
- zoj 1763 A Simple Question of Chemistry
- zoj1763-----------A Simple Question of Chemistry
- zoj 1763 A Simple Question of Chemistry(洪水!)
- zoj 1763 A Simple Question of Chemistry
- zoj 1763 A Simple Question of Chemistry
- ZOJ Problem Set–1763 A Simple Question of Chemistry
- ZOJ 1763 A Simple Question of Chemistry
- 1763_A Simple Question of Chemistry
- 1763 A Simple Question of Chemistry
- zju1763一个简单的化学问题A Simple Question of Chemistry
- POJ 2871 A Simple Question of Chemistry(水~)
- poj 2871 A Simple Question of Chemistry
- poj 2871 A Simple Question of Chemistry
- POJ 2871 A Simple Question of Chemistry(水题)
- poj 2871 A Simple Question of Chemistry
- POJ 2871 A Simple Question of Chemistry(我的水题之路——数列两数之差 )
- poj2871 A Simple Question of Chemistry(水题)
- poj2871 A Simple Question of Chemistry
- poj 2871 A Simple Question of Chemistry