c++primer 习题9.12

 

bool find_value(vector<int>::iterator a,vector<int>::iterator b,int value)

{

bool result=0;

while(a!=b)

{

if(*a==value)

{

result=1;

break;

}

else

a++;

}

return result;

}

 

void main()

{

vector<int> m;

m.push_back(2);

m.push_back(3);

m.push_back(1);

m.push_back(4);

m.push_back(5);

m.push_back(6);

vector<int>::iterator iter=m.begin();

vector<int>::iterator iter2=m.end();

int x;

iter=iter+2;

iter2=iter2-1;

cout<<"please input the value u want"<<endl;

cin>>x;

bool result=find_value(iter,iter2,x);

if(result==1)

cout<<"u can"<<result<<endl;

else

cout<<"haha"<<endl;

}