STL练习题续

//zjnu 1399
//sort 数组可用
//vector sort(vector)
#include<iostream>
#include<algorithm>
using namespace std;
int s[10000000];
int main()
{
    int n;
    int i;
    int k=0;
    while(scanf("%d",&n)&&n!=-1)
    {
        k++;
        for(i=0;i<n;i++)
            scanf("%d",&s[i]);
        sort(s,s+n);
        printf("Case number:%d\n",k);
        printf("Number of elements:%d\n",n);
        for(i=0;i<n-1;i++)
            printf("%d ",s[i]);
        printf("%d\n",s[n-1]);
    }
}

#include<iostream>
#include<algorithm>
#include<cstdio>
#include<vector>
#include<cstring>
using namespace std;
int main()
{
    vector<int>a;
    int n,x,k=0;
    while(scanf("%d",&n)&&n!=-1)
    {
        a.clear();
        for(int i=0;i<n;i++)
        {
            scanf("%d",&x);
            a.push_back(x);
        }
        sort(a.begin(),a.end());//vector的sort用法
        printf("Case number:%d\n",++k);
        printf("Number of elements:%d\n",n);
        for(int i=0;i<a.size()-1;i++)
            printf("%d ",a[i]);
        printf("%d\n",a[a.size()-1]);
    }
    system("pause");

}

//zjnu 1042 map
#include<iostream>
#include<algorithm>
#include<cstdio>
#include<map>
#include<cstring>
using namespace std;
map<int,int>cl;
map<int,int>::iterator it;
int a[11111];
int main()
{
    int n;
    while(~scanf("%d",&n))
    {
        int i,x;
        cl.clear();
        for(i=1;i<=n;i++)
        {
            scanf("%d",&x);
            cl[x]++;
        }
        for(it=cl.begin();it!=cl.end();it++)
        {
            printf("%d %d\n",(*it).first,(*it).second);
        }//first 指向x的值  second指向 cl[]的值
    }
    return 0;
}

//zjnu 1407
#include<iostream>
#include<algorithm>
#include<cstdio>
#include<cstring>
using namespace std;
struct node{
    int x,y,z;
}s[50001];
bool cmp(node a,node b)
{
    if(a.x==b.x&&a.y==b.y)
        return a.z<b.z;
    if(a.x==b.x)
        return a.y<b.y;
    return a.x<b.x;
}
int main()
{
    int t,n,i;
    scanf("%d",&t);
    while(t--)
    {
        scanf("%d",&n);
        for(i=0;i<n;i++)
        {
            scanf("%d%d%d",&s[i].x,&s[i].y,&s[i].z);
        }
        sort(s,s+n,cmp);
        printf("%d\n",n);
        for(i=0;i<n;i++)
        printf("%d %d %d\n",s[i].x,s[i].y,s[i].z);
    }
}

//zjnu 1403 全排列
#include<iostream>
#include<algorithm>
#include<cstdio>
#include<cstring>
using namespace std;
int a[1111];
int main()
{
    int n,m,i,j;
    while(~scanf("%d%d",&n,&m))
    {
        for(i=0;i<n;i++)
            a[i]=i+1;
        for(j=1;j<m;j++)
            next_permutation(a,a+n);
        for(i=0;i<n-1;i++)
            printf("%d ",a[i]);
        printf("%d\n",a[n-1]);
    }
    return 0;
}

 

#include<cstdio>
#include<iostream>
#include<algorithm>
#include<cstring>
#include<queue>
using namespace std;
struct node{
    int num,rank;
    friend bool operator<(node a,node b)
    {
        if(a.rank==b.rank)
        return a.num>b.num;//在后面的优先级高 
        return a.rank<b.rank; 
    }
};
int main()
{
    int t,i,n,m;
    char s[5];
    node x;    
    while(~scanf("%d",&t))
    {
        priority_queue<node>q[4];//每次都要重新定义队列 
        int id=1;
        while(t--)
        {
            scanf("%s",s);
            if(s[0]=='I')
            {
                scanf("%d%d",&n,&m);
                x.rank=m;
                x.num=id++;
                q[n].push(x);
            }
            else
            {
                scanf("%d",&n);
                if(q[n].empty())
                printf("EMPTY\n");
                else
                {
                    printf("%d\n",q[n].top().num);
                    q[n].pop();
                }
            }
        }
    }
    return 0;
}