学步园

贪心。记住这个。。。

/*
 * Author: stormdpzh
 * Created Time: 2012/7/14 15:21:06
 * File Name: woj_1022.cpp
 */
#include <iostream>
#include <cstdio>
#include <sstream>
#include <cstring>
#include <string>
#include <cmath>
#include <vector>
#include <queue>
#include <stack>
#include <map>
#include <set>
#include <algorithm>
#include <functional>

#define sz(v) ((int)(v).size())
#define rep(i, n) for(int i = 0; i < n; i++)
#define repf(i, a, b) for(int i = a; i <= b; i++)
#define repd(i, a, b) for(int i = a; i >= b; i--)
#define out(n) printf("%d\n", n)
#define mset(a, b) memset(a, b, sizeof(a))
#define wh(n) while(1 == scanf("%d", &n))
#define whz(n) while(1 == scanf("%d", &n) && n != 0)
#define lint long long

using namespace std;

const int MaxN = 3005;

struct Node {
    int t, c;
    bool operator < (const Node &tmp) const {
        return c > tmp.c;
    }
};
Node node[MaxN];
int n;
bool vis[MaxN];

int gao()
{
    int res = 0;
    mset(vis, false);
    rep(i, n) {
        bool ok = false;
        repd(j, node[i].t, 1) {
            if(!vis[j]) {
                vis[j] = true;
                ok = true;
                break;
            }
        }
        if(!ok) res += node[i].c;
    }
    return res;
}

int main()
{
    int t;
    scanf("%d", &t);
    int ans = 1;
    wh(n) {
        if(ans > 1) puts("");
        printf("Case %d:\n", ans++);
        rep(i, n) 
            scanf("%d%d", &node[i].t, &node[i].c);
        sort(node, node + n);
        out(gao());
    }
    return 0;
}