第六周作业

#include <iostream>

using namespace std;

int main()
{
int a[10];
int i;
for(i=0;i<10;i++)

a[i]=i*2+2;
for(i=0;i<10;i++)

{
cout<<a[i]<<'\t';

if((i+1)%5==0)
cout<<endl;
}
return 0;
}

#include <iostream>
using namespace std;
int main()
{
int a[10];
int i;
for(i=0;i<10;i++)
a[i]=i*2+2;
for(i=0;i<10;i++)
{
cout<<a[i]<<'\t';
if((i+1)%5==0)
cout<<endl;
}
return 0;
}

 

#include <iostream>

using namespace std;

int main()
{
int i,math[40],n;

float aver=0.0;
int unpassedcount=0;

int highpassedcount=0;
cout<<"请输入学生人数：";

cin>>n;
cout<<"请输入成绩:";
for(i=0;i<n;i++)
{
cin>>math[i];
aver+=math[i];
}
aver/=n;
for(i=0;i<n;i++)
{
if(math[i]<60) unpassedcount++;

if(math[i]>=90) highpassedcount++;

}
cout<<"平均分为:"<<aver<<endl;

cout<<"90分以上人数："<<highpassedcount<<endl;

cout<<"不及格人数为："<<unpassedcount<<endl;

return 0;
}

#include <iostream>
using namespace std;
int main()
{
int i,math[40],n;
float aver=0.0;
int unpassedcount=0;
int highpassedcount=0;
cout<<"请输入学生人数：";
cin>>n;
cout<<"请输入成绩:";
for(i=0;i<n;i++)
{
cin>>math[i];
aver+=math[i];
}
aver/=n;
for(i=0;i<n;i++)
{
if(math[i]<60) unpassedcount++;
if(math[i]>=90) highpassedcount++;
}
cout<<"平均分为:"<<aver<<endl;
cout<<"90分以上人数："<<highpassedcount<<endl;
cout<<"不及格人数为："<<unpassedcount<<endl;
return 0;
}

 

#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;
}

#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;
}

 

#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];
cout<<"the numbers are:";

for(i=1;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];
cout<<endl;
return 0;
}

#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];
cout<<"the numbers are:";
for(i=1;i<10;i++)
cout<<setw(4)<<a[i];
cout<<endl;
for(i=0;i
4000
<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];
cout<<endl;
return 0;
}

 

#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;
}

#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;
}

 

#include <iostream>

#include <iomanip>
using namespace std;

int main()
{
int i;
int 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
[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;
}

#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
int i;
int 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
[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;
}

 

#include<iostream>
using namespace std;

int main()
{
char str[50];
cout<<"Please input strings:";

cin.get(str,50);
cout<<"The strings is:";

cout<<str<<endl;

return 0;

}

#include<iostream>
using namespace std;

int main()
{
char str[50];
cout<<"Please input strings:";
cin.get(str,50);
cout<<"The strings is:";
cout<<str<<endl;

return 0;

}

 

#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];

}

#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];
}

 

#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;
} 

#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;
}

 

#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;
}

#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;
}

 

#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;
}

#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;
}

 

#include<iostream>
#include<iomanip>

using namespace std;
a8dd

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;
}

#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;
}

 

#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;
}

#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;
}

 

#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;
}

#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;
}