unique() sstream

sstream ss()自动去除空格

例:

string a="1 2 3 4 5;
getline(cin,a);
sstream ss(a);
while(ss>>b)
{
cout<<b<<endl;
}

输出是1\n2\n3\n4\n;

unique的作用是“去掉”容器中相邻元素的重复元素 它实质上是一个伪去除 它会把重复的元素添加到容器末尾 而返回值是去重之后的尾地址

int num[10]={1,1,2,2,2,3,4,5,5,5};
int ans=unique(num,num+10)-num;
时间： 2024-10-21 15:09:57

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