新手求教简单编程题

[huifeidemayi945]

固定值P1=100. 变量P2初始值为10. P2=P2+t. t的值在程序启动前可输入. 进行多次循环,循环次数是要求的值. 每次循环后P2都变化.-----P2=P2+t. 判断条件是P1-P2<5 .退出程序
例子:
t=2 P2=10+2=12 P1-P2=100-12=88 >=5 程序继续
t=2 P2=12+2=14 P1-P2=100-14=86 >=5 程序继续
..............................................
t=2 P2=94+2=96 P1-P2=100-96=4 <5 程序退出.
求一共进行多少次循环,每次循环结束后显示P2 P1-P2 循环次数

[LBJMD]

#include <iostream>
using namespace std;
int main()
{
int p1=100,p2=10;
int t;
int count=0;
cout<<"Input number t:"<<endl;
cin>>t;

while(p1-p2>=5)
{
p2+=t;
count++;
}

cout<<count<<endl;
return 0;
}

[無_1024]

#include <iostream>
#include <cstdlib>

using namespace std;

const int p1 = 100;

int main()
{
	int p2 = 10,t;
	cout << "input t: ";
	cin >> t;
	while(1)
	{
		cout << "t = " << t << "  p2 = " << p2 << " + " << t << " = " << p2 + t;
		p2 = p2 + t;
		cout << "  p1 - p2 = " << p1 << " - " << p2 << " = " << p1 - p2 ;
		if( p1 - p2 >= 5 )
		{
			cout << ">=5 程序继续" << endl;
		}
		else
		{
			cout << "<5 程序退出" << endl;
			break;
		}
	}
	return 0;
}

[CiCi]

////////////////////////////////////////////
#include <iostream.h>

void main()
{
int P1=100;
int P2=10;
int t;
cout<<"请输入t的值："<<endl;
cin>>t;
for(int i=0;P1-P2>5;++i)
{
P2+=t;
cout<<"P2="<<P2<<" "<<"P1-P2="<<P1-P2<<" "<<"循环第"<<i+1<<"次"<<endl;
}

}

/////////////////////////////////////////////


.... 是在帮你做作业么···

[無_1024]

#include <iostream>
#include <cstdlib>

using namespace std;

const int p1 = 100;

int main()
{
	int count = 0;
	int p2 = 10,t;
	cout << "input t: ";
	cin >> t;
	while(1)
	{
		cout << "t = " << t << "  p2 = " << p2 << " + " << t << " = " << p2 + t;
		p2 = p2 + t;
		cout << "  p1 - p2 = " << p1 << " - " << p2 << " = " << p1 - p2 ;
		count ++;
		if( p1 - p2 >= 5 )
		{
			cout << ">=5 程序继续" << endl;
		}
		else
		{
			cout << "<5 程序退出" << endl;
			break;
		}
	}
	cout << "the total time is " << count << endl;
	return 0;
}

[CiCi]

//////////////////////////////////////////////////////


#include <iostream.h>

void main()
{
int P1=100;
int P2=10;
int t;
cout<<"请输入t的值："<<endl;
cin>>t;
int i=0;
while (P1-P2>=5)
{
P2+=t;
cout<<"t="<<t<<" "<<"P2="<<P2<<"+"<<t<<"="<<P2<<" "<<"P1-P2="<<P1<<"-"<<P2<<"="<<P1-P2<<" "<<">=5"<<"循环第"<<i+1<<"次"<<" 程序继续"<<endl;
++i;
}
cout<<"t="<<t<<" "<<"P2="<<P2<<"+"<<t<<"="<<P2<<" "<<"P1-P2="<<P1<<"-"<<P2<<"="<<P1-P2<<" "<<"<5"<<"循环第"<<i+1<<"次"<<" 程序退出"<<endl;
cout<<"共循环了"<<i+1<<"次"<<endl;
}

//////////////////////////////////////////////////////////////

#3楼写的判断条件写错了··· 从给你写下···

[yileisen]

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[huifeidemayi945]

非常感谢LBJMD、hnuqinhuan、ccforevercc，我是新手，刚开始学习c++，非常感谢各位帮忙解答。不是课后作业。我正在自学中......

[huifeidemayi945]

刚申请的号，没多少分，只能给1楼2楼各10分了，ccforevercc不好意思啦 囧囧囧囧囧囧