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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#670040#7787. Maximum RatingYshanqianRE 1ms9768kbC++201.7kb2024-10-23 20:19:082024-10-23 20:19:09

Judging History

你现在查看的是最新测评结果

  • [2024-10-23 20:19:09]
  • 评测
  • 测评结果:RE
  • 用时:1ms
  • 内存:9768kb
  • [2024-10-23 20:19:08]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std ;
#define endl "\n"
#define ll long long
const ll N=5e5+11;
 
ll n,q,tot,a[N],b[N],sum[N*8],cnt[N*8];
struct node {ll x,v;}c[N];
void update(ll p,ll l,ll r,ll pos,ll val,ll add) {
    if(l==r) {
        sum[p]+=val*add;
        cnt[p]+=add;
        return;
    }
    ll mid=(l+r)/2;
    if(pos<=mid) update(p<<1,l,mid,pos,val,add);
    else update(p<<1|1,mid+1,r,pos,val,add);
    sum[p]=sum[p<<1]+sum[p<<1|1];
    cnt[p]=cnt[p<<1]+cnt[p<<1|1];
}
ll ask(ll p,ll l,ll r,ll fu){
	if(fu<=0) return 0;
	
	if(l==r){
		if(cnt[p]==0) return 0;
		return min(cnt[p],fu/(sum[p]/cnt[p]));
	}
	ll mid=(l+r)/2;
	if(sum[p<<1]<=fu) return cnt[p<<1]+ask(p<<1|1,mid+1,r,fu-sum[p<<1]);
	else return ask(p<<1,l,mid,fu);
}
void solve() {
    cin>>n>>q;
 
    ll tot=0,fu=0;
    for(ll i=1; i<=n; i++) {
        cin>>a[i];
        if(a[i]<=0) fu+=a[i];
        else b[++tot]=a[i];
    }
 
    for(ll i=1;i<=q;i++){
		cin>>c[i].x>>c[i].v;
		if(c[i].v>0) b[++tot]=c[i].v;
	}
	sort(b+1,b+1+tot);
    tot=unique(b+1,b+1+tot)-b-1;
    for(ll i=1; i<=n; i++) {
        if(a[i]>0) {
			ll x=lower_bound(b+1,b+1+tot,a[i])-b;
			update(1,1,tot,x,a[i],1);
        }
    }
	for(ll i=1;i<=q;i++){
		ll lst=a[c[i].x];
		a[c[i].x]=c[i].v;
		if(lst<=0) fu-=lst;
		else {
			ll pos=lower_bound(b+1,b+1+tot,lst)-b;
			update(1,1,tot,pos,lst,-1);
		}
		if(a[c[i].x]<=0) fu+=a[c[i].x];
		else {
			ll pos=lower_bound(b+1,b+1+tot,a[c[i].x])-b;
			update(1,1,tot,pos,a[c[i].x],1);
		}
		cout<<ask(1,1,tot,-fu)+1<<endl;
	}
}
signed main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
	
    ll Test=1;
    //cin>>Test;
 
    while(Test--) {
        solve();;
    }
 
    return 0;
}

詳細信息

Test #1:

score: 100
Accepted
time: 1ms
memory: 9748kb

input:

3 5
1 2 3
3 4
2 -2
1 -3
3 1
2 1

output:

1
2
2
2
3

result:

ok 5 number(s): "1 2 2 2 3"

Test #2:

score: 0
Accepted
time: 0ms
memory: 9768kb

input:

3 5
1 2 3
3 4
2 -2
1 3
3 1
2 1

output:

1
2
1
2
1

result:

ok 5 number(s): "1 2 1 2 1"

Test #3:

score: 0
Accepted
time: 0ms
memory: 9720kb

input:

1 1
1000000000
1 1000000000

output:

1

result:

ok 1 number(s): "1"

Test #4:

score: -100
Runtime Error

input:

1 1
-1000000000
1 -1000000000

output:


result: