Codeforces Round #436 E

Posted 2020-10-08 %%%%%

Fire

思路：排序+背包，对d排序然后跑背包

AC代码：

#include "iostream"
#include "iomanip"
#include "string.h"
#include "stack"
#include "queue"
#include "string"
#include "vector"
#include "set"
#include "map"
#include "algorithm"
#include "stdio.h"
#include "math.h"
#pragma comment(linker, "/STACK:102400000,102400000")
#define bug(x) cout<<x<<" "<<"UUUUU"<<endl;
#define mem(a,x) memset(a,x,sizeof(a))
#define step(x) fixed<< setprecision(x)<<
#define mp(x,y) make_pair(x,y)
#define pb(x) push_back(x)
#define ll long long
#define endl ("\n")
#define ft first
#define sd second
#define lrt (rt<<1)
#define rrt (rt<<1|1)
using namespace std;
const ll mod=1e9+7;
const ll INF = 1e18+1LL;
const int inf = 1e9+1e8;
const double PI=acos(-1.0);
const int N=1e5+100;

struct Node{
    int t,d,p,id;
    bool friend operator< (Node a, Node b){
        return a.d<b.d;
    }
}a[105];

int n,dp[2055],ans=0,t=0,mx=0;
vector<int> vex[2055];
int main(){
    scanf("%d",&n);
    for(int i=1; i<=n; ++i){
        scanf("%d%d%d",&a[i].t,&a[i].d,&a[i].p);
        a[i].id=i; mx=max(mx,a[i].d);
    }
    sort(a+1,a+1+n);
    for(int i=1; i<=n; ++i){
        for(int j=a[i].d-a[i].t-1; j>=0; --j){
            dp[j+a[i].t]=dp[j+a[i].t];
            if(dp[j+a[i].t] < dp[j]+a[i].p){
                dp[j+a[i].t]=dp[j]+a[i].p;
                vex[j+a[i].t]=vex[j];
                vex[j+a[i].t].pb(a[i].id);
            }
        }
    }
    for(int j=0; j<=mx+50; ++j){
        if(dp[j]>ans){
            ans=dp[j];
            t=j;
        }
    }
    cout<<ans<<endl<<vex[t].size()<<endl;
    for(auto i : vex[t]){
        cout<<i<<" ";
    }
    return 0;
}