#include <iostream>
#include <math.h>
#include <string>
using namespace std;
int main( )
{int base, exp;long result=1;cout<<"请输入底数和指数："<<endl;cin>>base>>exp;if(exp<0) {cout<<"指数不能为负数！"<<endl;return -1;}for(int i=1; i <= exp; i++)result *= base;cout<<base<<"的"<<exp<<"次方为"<<result<<endl;system("PAUSE");return 0;
}

#include <iostream>
#include <string>
using namespace std;
int main( )
{string str1, str2;cin>>str1>>str2;if(str1 == str2)cout<<"str1与str2相等"<<endl;elsecout<<"str1与str2不相等"<<endl;system("PAUSE");return 0;
}

#include <iostream>
#include <string>
using namespace std;
int main( )
{string str, ss;cout<<"请输入字符串：\n";while(cin>>str)ss = ss + str;cout<<"连接后的字符串为："<<ss<<endl;system("PAUSE");return 0;
}

#include <iostream>
#include <string>
using namespace std;
int main( )
{string str, ss;cout<<"请输入字符串：\n";while(cin>>str)ss= ss + ' ' + str;cout<<"连接后的字符串为："<<ss<<endl;system("PAUSE");return 0;
}

#include <iostream>
#include <string>
#include <cctype>
using namespace std;
int main( )
{string str, ss;cout<<"请输入字符串：\n";getline(cin, str);for(string::size_type i=0; i!=str.size(); ++i) {if(!ispunct(str[i]))ss+=str[i];}cout<<"连接后的字符串为："<<ss<<endl;system("PAUSE");return 0;
}

#include <iostream>
#include <string>
#include <vector>
using namespace std;int main( )
{vector<int> vec;int n;while(cin>>n)vec.push_back(n);if(!vec.size()) {cout<<"没有数字!"<<endl;return -1;}for(vector<int>::size_type i=0; i<vec.size()-1; i+=2) {cout<<vec[i]+vec[i+1]<<"\t";if((i+1)%6==0) cout<<endl;}if(vec.size()%2!=0)cout<<endl<<"最后一个数是："<<vec[vec.size()-1]<<endl;system("PAUSE");return 0;
}

#include <iostream>
#include <cctype>
#include <string>
#include <vector>
using namespace std;
void replace(string &s)  //将字符串中的所有的小写字符全部转化为大写
{for(int i=0; i<s.length(); ++i) {if(islower(s[i]))s[i]=toupper(s[i]);}
}
int main( )
{int n;string str;vector<string> vec;n=1;cout<<"请输入一段文本：\n";while(cin>>str)vec.push_back(str);for(vector<string>::iterator i=vec.begin(); i!=vec.end(); ++i) {replace(*i);cout<<(*i);if(n%8==0)cout<<endl;elsecout<<" ";n++;}system("PAUSE");return 0;
}

#include <iostream>
#include <vector>
using namespace std;
int main( )
{vector<int> vec(10,2);for(vector<int>::iterator it=vec.begin(); it!=vec.end(); it++) {*it=(*it)*2;cout<<(*it)<<" ";}cout<<endl;system("PAUSE");return 0;
}