解析

两道很像的题
不能说相似，只能说是一模一样
感觉有火车载客的影子
想到开个堆来维护
在供不应求时弹出要求最高的即可
T1还得输出方案针麻烦

代码

你会发现几乎一毛一样

T1

#include<bits/stdc++.h>const int N=3e5+100;
const int M=2e3+100;
const int mod=1e9+7;
#define ll long long
#define ull unsigned long long
#define debug(...) fprintf(stderr,__VA_ARGS__)
using namespace std;
inline ll read() {ll x(0),f(1);char c=getchar();while(!isdigit(c)) {if(c=='-')f=-1;c=getchar();}while(isdigit(c)) {x=(x<<1)+(x<<3)+c-'0';c=getchar();}return x*f;
}int n,m;#define pr pair<int,int>
#define mkp make_pair
priority_queue<pr>q;
int ans;
ll now,a[N],b[N],tot;
bool vis[N];
int main(){
#ifndef ONLINE_JUDGEfreopen("a.in","r",stdin);freopen("a.out","w",stdout);
#endifn=read();for(int i=1;i<=n;i++) a[i]=read();for(int i=1;i<=n;i++) b[i]=read();for(int i=1;i<=n;i++){ans++;q.push(mkp(b[i],i));tot+=a[i];now+=b[i];vis[i]=1;while(now>tot){pr o=q.top();q.pop();now-=o.first;ans--;vis[o.second]=0;}}printf("%d\n",ans);for(int i=1;i<=n;i++){if(vis[i]) printf("%d ",i);}return 0;
}
/*5 37 1 4 1 9 1 3 5 31 1 4 22 3 5
*/

T2

#include<bits/stdc++.h>const int N=2e5+100;
const int M=2e3+100;
const int mod=1e9+7;
#define ll long long
#define ull unsigned long long
#define debug(...) fprintf(stderr,__VA_ARGS__)
using namespace std;
inline ll read() {ll x(0),f(1);char c=getchar();while(!isdigit(c)) {if(c=='-')f=-1;c=getchar();}while(isdigit(c)) {x=(x<<1)+(x<<3)+c-'0';c=getchar();}return x*f;
}int n,m;priority_queue<ll>q;
struct node{ll cost,ed;bool operator < (const node o)const{return ed<o.ed;}
}p[N];
int main(){
#ifndef ONLINE_JUDGEfreopen("a.in","r",stdin);freopen("a.out","w",stdout);
#endifn=read();for(int i=1;i<=n;i++) p[i]=(node){read(),read()};sort(p+1,p+1+n);int ans(0);ll sum(0);for(int i=1;i<=n;i++){sum+=p[i].cost;q.push(p[i].cost);ans++;while(sum>p[i].ed){sum-=q.top();q.pop();ans--;}}printf("%d\n",ans);return 0;
}
/*5 37 1 4 1 9 1 3 5 31 1 4 22 3 5
*/