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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#772218 | #9529. Farm Management | shenchuan_fan | WA | 0ms | 3816kb | C++20 | 1.8kb | 2024-11-22 17:36:14 | 2024-11-22 17:36:15 |
Judging History
answer
#include <bits/stdc++.h>
#define int long long
using namespace std;
struct Node {
int w, l, r;
// 定义比较运算符
bool operator<(const Node &other) const {
if (w != other.w) {
return w < other.w;
} else {
return (r-l)<(other.r-other.l);
}
}
};
void solve()
{
int n,m;
cin>>n>>m;
vector<Node>res(n+1);
int val=0;
int tot=0;
for(int i=1;i<=n;i++){
int w,l,r;
cin>>w>>l>>r;
res[i]={w,l,r};
val+=w*l;
tot+=l;
}
sort(res.begin()+1,res.end());
vector<int>sum(n+1,0);
vector<int>cnt(n+1,0);
for(int i=1;i<=n;i++){
sum[i]=sum[i-1]+(res[i].r-res[i].l)*res[i].w;
cnt[i]=cnt[i-1]+(res[i].r-res[i].l);
}
int ans=0;
if(tot==m){
ans=val;
}
for(int i=1;i<=n;i++){
int num=tot-res[i].l;
int now=val-res[i].w*res[i].l;
if(m>=num){
int need=m-num;
int l=0,r=n-1;
while(l<r){
int mid=l+r+1>>1;
if(cnt[n]-cnt[mid]+(mid>=i?0:(res[i].l))>=need) l=mid;
else r=mid-1;
}
if(cnt[n]-cnt[l]+(l>=i?0:(res[i].l))==need){
ans=max(ans,now+sum[n]-sum[l]+(l>=i?0:(res[i].l)*res[i].w));
}else{
l+=1;
int p=need-(cnt[n]-cnt[l]+(l>=i?0:(res[i].l)));
ans=max(ans,now+sum[n]-sum[l]+(l>=i?0:(res[i].l)*res[i].w)+p*res[l-1].w);
}
}
}
cout<<ans<<'\n';
}
signed main()
{
ios::sync_with_stdio(false),cin.tie(0),cout.tie(0);
int T=1;
//cin>>T;
while(T--)
{
solve();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3816kb
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: -100
Wrong Answer
time: 0ms
memory: 3500kb
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:
34859047
result:
wrong answer 1st lines differ - expected: '35204500', found: '34859047'