第六周作业 例题
2014-06-16 22:16
309 查看
例题1:
1:
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#include<iostream>
using namespace std;
int main()
{
int a[10];
int i;
for(i=0;i<10;i++) //给所有的数组元素赋初值
a[i]=i*2+2;
for(i=0;i<10;i++) //输出所有的数组元素,没行显示5个数组元素
{
cout<<a[i]<<'\t';
if((i+1)%5==0)
cout<<endl;
}
return 0;
}
2:
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![](https://code.csdn.net/assets/CODE_ico.png)
![](https://code.csdn.net/assets/ico_fork.svg)
#include<iostream>
using namespace std;
int main()
{
int a[10];
int i;
for(i=0;i<10;i++)
{
a[i]=i*2+2;
cout<<a[i]<<'\t';
if((i+1)%5==0)
cout<<endl;
}
return 0;
}
//一个FOR循环就能实现了。
例题2:
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![](https://code.csdn.net/assets/CODE_ico.png)
![](https://code.csdn.net/assets/ico_fork.svg)
#include<iostream>
using namespace std;
int main()
{
int i,math[40],n;
float aver=0.0; //平均分
int unpassedcout = 0; // 不及格学生人数
int highscorecout =0; // 90分以上学生人数
cout<<"请输入学生人数:";
cin>>n;
cout<<"请输入学生成绩:";
for(i=0;i<n;i++)
{
cin>>math[i];
aver+=math[i];
}
aver/=n;
for(i=0;i<n;i++)
{
if(math[i]<60) unpassedcout++;
if(math[i]>90) highscorecout++;
}
cout<<"平均分为:"<<aver<<endl;
cout<<"90分以上人数为:"<<highscorecout<<endl;
cout<<"不及格人数为:"<<unpassedcout<<endl;
return 0;
}
例题3:
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![](https://code.csdn.net/assets/CODE_ico.png)
![](https://code.csdn.net/assets/ico_fork.svg)
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
int a[10],i,big;
cout<<"please input 10 numbers:\n";
for(i=0;i<10;i++)
cin>>a[i];
cout<<"the numbers are:";
for(i=0;i<10;i++)
cout<<setw(4)<<a[i];
cout<<endl;
big=a[0];
for(i=1;i<10;i++)
if(a[i]>big)
big=a[i];
cout<<"the big number is :"<<big<<endl;
return 0;
}
例题3:
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![](https://code.csdn.net/assets/CODE_ico.png)
![](https://code.csdn.net/assets/ico_fork.svg)
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
int a[10];
int i,j,t;
cout<<"please input 10 numbers:\n";
for(i=0;i<10;i++)
cin>>a[i]; //输入数组元素
cout<<"the numbers are:";
for(i=0;i<10;i++)
cout<<setw(4)<<a[i];
cout<<endl;
for(i=0;i<9;i++)
for(j=0;j<9-i;j++)
if(a[j]>a[j+1])
{
t=a[j];a[j]=a[j+1];a[j+1]=t;
}
cout<<"the sorted numbers are:";
for(i=0;i<10;i++)
cout<<setw(4)<<a[i]; //输出数组元素
cout<<endl;
return 0;
}
例题4:
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![](https://code.csdn.net/assets/CODE_ico.png)
![](https://code.csdn.net/assets/ico_fork.svg)
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
int i;
int f[40]={1,1};
for(i=2;i<40;i++)
f[i]=f[i-2]+f[i-1];
for(i=0;i<40;i++)
{
if(i%4==0)
cout<<endl;
cout<<setw(12)<<f[i];
}
cout<<endl;
return 0;
}
例题5:
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![](https://code.csdn.net/assets/CODE_ico.png)
![](https://code.csdn.net/assets/ico_fork.svg)
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
int i,j;
int a[5][5];
for(i=0;i<5;i++)
{
for(j=0;j<5;j++)
{
if(i%2==0)
a[i][j]=i*5+j+1;
else
a[i][4-j]=i*5+j+1;
}
}
for(i=0;i<5;i++)
{
for(j=0;j<5;j++)
cout<<setw(4)<<a[i][j];
cout<<endl;
}
return 0;
}
例题6:
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![](https://code.csdn.net/assets/CODE_ico.png)
![](https://code.csdn.net/assets/ico_fork.svg)
#include<iostream>
using namespace std;
int main()
{
char str[50];
cout<<"Please input strings:";
cin.get(str,50); //默认结束符是Enter
cout<<"The strings is:";
cout<<str<<endl;
return 0;
}
例题7:
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![](https://code.csdn.net/assets/CODE_ico.png)
![](https://code.csdn.net/assets/ico_fork.svg)
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
int a[2][3];
int i,j,big;
cout<<"请输入二行三列二维数组的元素值:"<<endl;
for(i=0;i<2;i++)
for(j=0;j<3;j++)
{
cout<<"a["<<i<<"]"<<"["<<j<<"]=";
cin>>a[i][j];
}
cout<<"该二维数组为:";
for(i=0;i<2;i++)
for(j=0;j<3;j++)
{
if(j%3==0)
cout<<endl;
cout<<setw(4)<<a[i][j];
}
cout<<endl;
big=a[0][0];
for(i=0;i<2;i++)
for(j=0;j<3;j++)
if(a[i][j]>=big)
big=a[i][j];
for(i=0;i<2;i++)
for(j=0;j<3;j++)
if(a[i][j]==big)
cout<<"该数组中最大元素为:"<<"a["<<i<<"]"<<"["<<j<<"]="<<a[i][j];
}
例题8:
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![](https://code.csdn.net/assets/CODE_ico.png)
![](https://code.csdn.net/assets/ico_fork.svg)
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
char str[50];
cout<<"Please input a string:";
cin.get(str,50);
cout<<"The length of string"<<str<<"is"<<strlen(str)<<endl;
return 0;
}
例题9:
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![](https://code.csdn.net/assets/CODE_ico.png)
![](https://code.csdn.net/assets/ico_fork.svg)
#include<iostream>
#include<cstring>
using namespace std;
int main()
{
char str[100];
cout<<"请输入一个字符串:";
cin.get(str,100);
cout<<"字符串"<<str<<"的反向字符串为:";
for(int i=strlen(str)-1;i>=0;i--)
cout<<str[i];
cout<<endl;
return 0;
}
例题10:
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![](https://code.csdn.net/assets/CODE_ico.png)
![](https://code.csdn.net/assets/ico_fork.svg)
#include <iostream>
using namespace std;
int main()
{
char s[]="This is C programming test.";
int i=0,pLen=0,maxpLen = 0, pSeat = 0;
while(s[i]!='\0')
{
while(s[i]!=' '&&s[i]!='\0')
{
pLen++;
i++;
}
if(pLen>maxpLen)
{
pSeat=i-pLen;
maxpLen=pLen;
}
while(s[i]==' ')
i++;
pLen=0;
}
cout <<"最长的单词 :";
for(i=0;i<maxpLen;i++)
cout << s[pSeat+i];
cout <<endl;
return 0;
}
例题11:
[cpp] view
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![](https://code.csdn.net/assets/CODE_ico.png)
![](https://code.csdn.net/assets/ico_fork.svg)
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
char str[50];
cout<<"Please input a string:";
cin.get(str,50);
cout<<"The length of string"<<str<<"is"<<strlen(str)<<endl;
return 0;
}
例题12:
[cpp] view
plaincopy
![](https://code.csdn.net/assets/CODE_ico.png)
![](https://code.csdn.net/assets/ico_fork.svg)
#include<iostream>
#include<cstring>
using namespace std;
int main()
{
char str[10];
cout<<"请输入字符串,直到输入 hello 后程序结束:"<<endl;
do{
cin>>str;
}while(strcmp(str,"hello")!=0);
return 0;
}
例题13:
[cpp] view
plaincopy
![](https://code.csdn.net/assets/CODE_ico.png)
![](https://code.csdn.net/assets/ico_fork.svg)
#include<iostream>
using namespace std;
int main()
{
char str[50];
int len=0;
cout<<"请输入一个字符串:";
cin.get(str,50);
while(str[len] !='\0')
len++;
cout<<"字符串"<<str<<"的长度"<<len<<endl;
return 0;
}
1:
[cpp] view
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![](https://code.csdn.net/assets/CODE_ico.png)
#include<iostream>
using namespace std;
int main()
{
int a[10];
int i;
for(i=0;i<10;i++) //给所有的数组元素赋初值
a[i]=i*2+2;
for(i=0;i<10;i++) //输出所有的数组元素,没行显示5个数组元素
{
cout<<a[i]<<'\t';
if((i+1)%5==0)
cout<<endl;
}
return 0;
}
2:
[cpp] view
plaincopy
![](https://code.csdn.net/assets/CODE_ico.png)
#include<iostream>
using namespace std;
int main()
{
int a[10];
int i;
for(i=0;i<10;i++)
{
a[i]=i*2+2;
cout<<a[i]<<'\t';
if((i+1)%5==0)
cout<<endl;
}
return 0;
}
//一个FOR循环就能实现了。
例题2:
[cpp] view
plaincopy
![](https://code.csdn.net/assets/CODE_ico.png)
#include<iostream>
using namespace std;
int main()
{
int i,math[40],n;
float aver=0.0; //平均分
int unpassedcout = 0; // 不及格学生人数
int highscorecout =0; // 90分以上学生人数
cout<<"请输入学生人数:";
cin>>n;
cout<<"请输入学生成绩:";
for(i=0;i<n;i++)
{
cin>>math[i];
aver+=math[i];
}
aver/=n;
for(i=0;i<n;i++)
{
if(math[i]<60) unpassedcout++;
if(math[i]>90) highscorecout++;
}
cout<<"平均分为:"<<aver<<endl;
cout<<"90分以上人数为:"<<highscorecout<<endl;
cout<<"不及格人数为:"<<unpassedcout<<endl;
return 0;
}
例题3:
[cpp] view
plaincopy
![](https://code.csdn.net/assets/CODE_ico.png)
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
int a[10],i,big;
cout<<"please input 10 numbers:\n";
for(i=0;i<10;i++)
cin>>a[i];
cout<<"the numbers are:";
for(i=0;i<10;i++)
cout<<setw(4)<<a[i];
cout<<endl;
big=a[0];
for(i=1;i<10;i++)
if(a[i]>big)
big=a[i];
cout<<"the big number is :"<<big<<endl;
return 0;
}
例题3:
[cpp] view
plaincopy
![](https://code.csdn.net/assets/CODE_ico.png)
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
int a[10];
int i,j,t;
cout<<"please input 10 numbers:\n";
for(i=0;i<10;i++)
cin>>a[i]; //输入数组元素
cout<<"the numbers are:";
for(i=0;i<10;i++)
cout<<setw(4)<<a[i];
cout<<endl;
for(i=0;i<9;i++)
for(j=0;j<9-i;j++)
if(a[j]>a[j+1])
{
t=a[j];a[j]=a[j+1];a[j+1]=t;
}
cout<<"the sorted numbers are:";
for(i=0;i<10;i++)
cout<<setw(4)<<a[i]; //输出数组元素
cout<<endl;
return 0;
}
例题4:
[cpp] view
plaincopy
![](https://code.csdn.net/assets/CODE_ico.png)
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
int i;
int f[40]={1,1};
for(i=2;i<40;i++)
f[i]=f[i-2]+f[i-1];
for(i=0;i<40;i++)
{
if(i%4==0)
cout<<endl;
cout<<setw(12)<<f[i];
}
cout<<endl;
return 0;
}
例题5:
[cpp] view
plaincopy
![](https://code.csdn.net/assets/CODE_ico.png)
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
int i,j;
int a[5][5];
for(i=0;i<5;i++)
{
for(j=0;j<5;j++)
{
if(i%2==0)
a[i][j]=i*5+j+1;
else
a[i][4-j]=i*5+j+1;
}
}
for(i=0;i<5;i++)
{
for(j=0;j<5;j++)
cout<<setw(4)<<a[i][j];
cout<<endl;
}
return 0;
}
例题6:
[cpp] view
plaincopy
![](https://code.csdn.net/assets/CODE_ico.png)
#include<iostream>
using namespace std;
int main()
{
char str[50];
cout<<"Please input strings:";
cin.get(str,50); //默认结束符是Enter
cout<<"The strings is:";
cout<<str<<endl;
return 0;
}
例题7:
[cpp] view
plaincopy
![](https://code.csdn.net/assets/CODE_ico.png)
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
int a[2][3];
int i,j,big;
cout<<"请输入二行三列二维数组的元素值:"<<endl;
for(i=0;i<2;i++)
for(j=0;j<3;j++)
{
cout<<"a["<<i<<"]"<<"["<<j<<"]=";
cin>>a[i][j];
}
cout<<"该二维数组为:";
for(i=0;i<2;i++)
for(j=0;j<3;j++)
{
if(j%3==0)
cout<<endl;
cout<<setw(4)<<a[i][j];
}
cout<<endl;
big=a[0][0];
for(i=0;i<2;i++)
for(j=0;j<3;j++)
if(a[i][j]>=big)
big=a[i][j];
for(i=0;i<2;i++)
for(j=0;j<3;j++)
if(a[i][j]==big)
cout<<"该数组中最大元素为:"<<"a["<<i<<"]"<<"["<<j<<"]="<<a[i][j];
}
例题8:
[cpp] view
plaincopy
![](https://code.csdn.net/assets/CODE_ico.png)
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
char str[50];
cout<<"Please input a string:";
cin.get(str,50);
cout<<"The length of string"<<str<<"is"<<strlen(str)<<endl;
return 0;
}
例题9:
[cpp] view
plaincopy
![](https://code.csdn.net/assets/CODE_ico.png)
#include<iostream>
#include<cstring>
using namespace std;
int main()
{
char str[100];
cout<<"请输入一个字符串:";
cin.get(str,100);
cout<<"字符串"<<str<<"的反向字符串为:";
for(int i=strlen(str)-1;i>=0;i--)
cout<<str[i];
cout<<endl;
return 0;
}
例题10:
[cpp] view
plaincopy
![](https://code.csdn.net/assets/CODE_ico.png)
#include <iostream>
using namespace std;
int main()
{
char s[]="This is C programming test.";
int i=0,pLen=0,maxpLen = 0, pSeat = 0;
while(s[i]!='\0')
{
while(s[i]!=' '&&s[i]!='\0')
{
pLen++;
i++;
}
if(pLen>maxpLen)
{
pSeat=i-pLen;
maxpLen=pLen;
}
while(s[i]==' ')
i++;
pLen=0;
}
cout <<"最长的单词 :";
for(i=0;i<maxpLen;i++)
cout << s[pSeat+i];
cout <<endl;
return 0;
}
例题11:
[cpp] view
plaincopy
![](https://code.csdn.net/assets/CODE_ico.png)
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
char str[50];
cout<<"Please input a string:";
cin.get(str,50);
cout<<"The length of string"<<str<<"is"<<strlen(str)<<endl;
return 0;
}
例题12:
[cpp] view
plaincopy
![](https://code.csdn.net/assets/CODE_ico.png)
#include<iostream>
#include<cstring>
using namespace std;
int main()
{
char str[10];
cout<<"请输入字符串,直到输入 hello 后程序结束:"<<endl;
do{
cin>>str;
}while(strcmp(str,"hello")!=0);
return 0;
}
例题13:
[cpp] view
plaincopy
![](https://code.csdn.net/assets/CODE_ico.png)
#include<iostream>
using namespace std;
int main()
{
char str[50];
int len=0;
cout<<"请输入一个字符串:";
cin.get(str,50);
while(str[len] !='\0')
len++;
cout<<"字符串"<<str<<"的长度"<<len<<endl;
return 0;
}
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