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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#715075#9529. Farm Managementucup-team5271#WA 1ms5852kbC++172.3kb2024-11-06 10:17:522024-11-06 10:17:54

Judging History

你现在查看的是最新测评结果

  • [2024-11-06 10:17:54]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:5852kb
  • [2024-11-06 10:17:52]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
typedef pair<int,int> pii;
mt19937 Rnd(time(0));
typedef struct{
  int l,r,w;
}AD;
bool cmp(AD A,AD B)
{
  return A.w > B.w;
}
AD a[100011];
typedef struct{
  int key,ls,rs,siz;
  long long Ls,xs,valL,valx;
  int l,x,w;
}Tree;
Tree t[100011];
int root;
void push_up(int p)
{
  t[p].Ls = t[t[p].ls].Ls + t[t[p].rs].Ls + t[p].l;
  t[p].xs = t[t[p].ls].xs + t[t[p].rs].xs + t[p].x;
  t[p].valL = t[t[p].ls].valL + t[t[p].rs].valL + 1ll * t[p].l * t[p].w;
  t[p].valx = t[t[p].ls].valx + t[t[p].rs].valx + 1ll * t[p].x * t[p].w;
  t[p].siz = t[t[p].ls].siz + 1 + t[t[p].rs].siz;
}
int merge(int x,int y)
{
  if(!x || !y) return x|y;
  if(t[x].key < t[y].key)
      return t[x].rs = merge(t[x].rs,y),push_up(x),x;
  return t[y].ls = merge(x,t[y].ls),push_up(y),y;
}
void split_x(int p,long long k,int& l,int& r)
{
  if(!p) return l = r = 0,void();
  if(t[t[p].ls].xs + t[p].x <= k)
      return l = p,split_x(t[p].rs,k - t[t[p].ls].xs - t[p].x,t[p].rs,r),push_up(p);
  return r = p,split_x(t[p].ls,k,l,t[p].ls),push_up(p);
}
void split_s(int p,int k,int& l,int& r)
{
  if(!p) return l = r = 0,void();
  if(t[t[p].ls].siz + 1 <= k)
      return l = p,split_s(t[p].rs,k - t[t[p].ls].siz - 1,t[p].rs,r),push_up(p);
  return r = p,split_s(t[p].ls,k,l,t[p].ls),push_up(p);
}
int n;
long long m;
long long Solve(int& rt)
{
  if(t[rt].Ls + t[rt].xs < m)
    return 0;
  long long S = m - t[rt].Ls,res = t[rt].valL;
  int l,p = 0,r;
  split_x(rt,S,l,r);
  res += t[l].valx;
  S -= t[l].xs;
  if(r)
    split_s(r,1,p,r),res += t[p].w * S;
  rt = merge(merge(l,p),r);
  return res;
}
int main(){
  ios::sync_with_stdio(false);
  cin.tie(0); cout.tie(0);
  cin >> n >> m;
  for(int i = 1;i <= n;i++)
      cin >> a[i].w >> a[i].l >> a[i].r;
  sort(a + 1,a + n + 1,cmp);
  for(int i = 1;i <= n;i++)
  {
    t[i] = {(int)Rnd(),0,0,1,0,0,0,0,a[i].l,a[i].r - a[i].l,a[i].w};
    push_up(i);
    root = merge(root,i);
  }
  long long ans = Solve(root);
  for(int i = 1;i <= n;i++)
  {
    int l,p,r;
    split_s(root,i - 1,l,r);
    split_s(r,1,p,r);
    root = merge(l,r);
    ans = max(ans,Solve(root));
    split_s(root,i - 1,l,r);
    root = merge(merge(l,p),r);
  }
  cout << ans;
  return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3672kb

input:

5 17
2 3 4
6 1 5
8 2 4
4 3 3
7 5 5

output:

109

result:

ok single line: '109'

Test #2:

score: 0
Accepted
time: 1ms
memory: 5852kb

input:

12 62
503792 9 10
607358 1 3
600501 10 10
33249 4 4
774438 6 6
197692 3 6
495807 8 8
790225 5 9
77272 3 8
494819 4 9
894779 3 9
306279 5 6

output:

35204500

result:

ok single line: '35204500'

Test #3:

score: -100
Wrong Answer
time: 1ms
memory: 5848kb

input:

15 32
835418 2 3
178262 1 3
527643 2 2
519710 1 1
774544 3 3
82312 1 1
808199 1 1
809396 1 3
255882 1 3
80467 1 3
874973 1 3
813965 1 2
198275 1 2
152356 1 3
802055 1 1

output:

17015002

result:

wrong answer 1st lines differ - expected: '22000255', found: '17015002'