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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#790360#9529. Farm Managementiim76WA 0ms3844kbC++141.7kb2024-11-28 11:04:172024-11-28 11:04:19

Judging History

你现在查看的是最新测评结果

  • [2024-11-28 11:04:19]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:3844kb
  • [2024-11-28 11:04:17]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

using ll = long long;

struct node{
	int w, l, r;
	
	bool operator<(const node & other)const{
		return w < other.w;
	}
};

void solve(){
	int n;
	ll m;
	cin >> n >> m;
	ll t = m;
	vector<node> crops(n + 1);
	for(int i = 1; i <= n; i++){
		cin >> crops[i].w >> crops[i].l >> crops[i].r;
	}
	sort(crops.begin() + 1, crops.end());
	
	vector<ll> prel(n + 5), prewl(n + 5), prelr(n + 5), prewlr(n + 5);
	for(int i = 1; i <= n; i++){
		prel[i] = prel[i - 1] + crops[i].l;
		prewl[i] = prewl[i - 1] + crops[i].l * crops[i].w;
		prelr[i] = prelr[i - 1] + crops[i].r - crops[i].l;
		prewlr[i] = prewlr[i - 1] + (crops[i].r - crops[i].l) * crops[i].w;
	}
	
	ll ans = prewl[n];
	t -= prel[n];
	
	//prelr[n] - prelr[l] <= t  //不存在找不到的情况 
	int p = lower_bound(prelr.begin() + 1, prelr.begin() + n + 1, prelr[n] - t) - prelr.begin();
	
	t -= prelr[n] - prelr[p];
	ans += prewlr[n] - prewlr[p];	
	ans += t * crops[p].w;
	
	//cout << ans << " " << t << endl;
	
	for(int i = 1; i <= n; i++){
		ll s = m;
		s -= prel[n];
		ll res = prewl[n];
		s += crops[i].l;
		res -= crops[i].l * crops[i].w;
		
		//prelr[n] - prelr[l] <= s
		//假如多开数组避免特判,则要注意开始和结束位置 
		int p1 = lower_bound(prelr.begin() + i, prelr.begin() + n + 1, prelr[n] - s) - prelr.begin();
		
		res += prewlr[n] - prewlr[p1];
		//cout << res << endl;		
		s -= prelr[n] - prelr[p1];		
		res += s * crops[p1].w;
					
		//cerr << res << endl;
		
		ans = max(ans, res);	
	}
	cout << ans;
}

int main(){
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	
	solve();
	
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3844kb

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: 0ms
memory: 3552kb

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: 0
Accepted
time: 0ms
memory: 3500kb

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:

22000255

result:

ok single line: '22000255'

Test #4:

score: 0
Accepted
time: 0ms
memory: 3556kb

input:

13 20
526447 1 1
807398 2 2
4167 1 2
944031 2 2
830685 2 2
394251 1 2
505011 1 2
968848 1 1
58170 1 3
32504 1 1
792273 3 3
196120 1 2
714507 1 1

output:

12878768

result:

ok single line: '12878768'

Test #5:

score: 0
Accepted
time: 0ms
memory: 3620kb

input:

13 32
582584 1 3
335440 3 3
971984 1 2
864169 1 2
528515 1 1
382399 1 2
459855 1 2
406909 2 3
66780 2 3
885118 3 3
434844 1 2
93331 1 3
502509 1 3

output:

22065034

result:

ok single line: '22065034'

Test #6:

score: 0
Accepted
time: 0ms
memory: 3808kb

input:

12 77
30244 1 7
518214 3 8
486001 8 9
152634 2 3
180255 3 4
791887 1 6
635820 2 9
881171 3 5
337905 3 8
683182 5 5
300786 3 6
339094 7 9

output:

50453764

result:

ok single line: '50453764'

Test #7:

score: -100
Wrong Answer
time: 0ms
memory: 3616kb

input:

10 3923726
826284 215861 638800
471693 146746 886003
140800 532315 684546
673434 604071 814259
170671 299465 525449
104262 689547 855391
215333 591975 803421
795321 31606 984783
103838 361911 601318
145693 450227 686945

output:

295841681449

result:

wrong answer 1st lines differ - expected: '1597735409747', found: '295841681449'