代码如下：

#include<iostream>
#include<string>
#include<vector>
#include<algorithm>
#include<functional>
using namespace std;
bool jianyi(int a,int b){
  return a==b-1;
}
int main(){
  int a[]={1,2,3,4,5,6,7,8,9,10};
  int b[]={1,2,3,5,6,7,8,9,10,11};
  vector<int>v(a,a+10);
  vector<int>vv(b,b+10);


  pair<vector<int>::iterator,vector<int>::iterator>pa=mismatch(v.begin(),v.end(),vv.begin());
  if(pa.first!=v.end()&&pa.second!=vv.end()){
    cout<<"第一个在v中不匹配的是"<<*(pa.first)<<endl;
    cout<<"第一个在vv中不匹配的是"<<*(pa.second)<<endl;
  }
  system("pause");
  return 0;
}
#include<iostream>
#include<string>
#include<vector>
#include<algorithm>
#include<functional>
using namespace std;
int main(){
  int a[]={1,2,3,4,5,6,7,8,9,10};
  int b[]={1,2,3,4,5,6,7,8,9,10};
  vector<int>v(a,a+10);
  vector<int>vv(b,b+10);
  if(lexicographical_compare(v.begin(),v.end(),vv.begin(),vv.end()),jianyi){
    cout<<"符合字典次序"<<endl;
  }else{
    cout<<"不合符字典次序"<<endl;
  }
  cout<<endl;
  system("pause");
  return 0;
}
#include<iostream>
#include<string>
#include<vector>
#include<algorithm>
#include<functional>
using namespace std;

int main(){
  int a[]={1,2,3,4,5,6,7,8,9,10};
  int b[]={1,2,3,4,5,6,7,8,9,10};
  vector<int>v(a,a+10);
  vector<int>vv(b,b+10);
  if(lexicographical_compare(v.begin(),v.end(),vv.begin(),vv.end())){
    cout<<"符合字典次序"<<endl;
  }else{
    cout<<"不合符字典次序"<<endl;
  }
  cout<<endl;
  system("pause");
  return 0;
}