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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#683693#9529. Farm Managementivyoruska#WA 0ms3832kbC++202.6kb2024-10-27 22:49:142024-10-27 22:49:15

Judging History

你现在查看的是最新测评结果

  • [2024-10-27 22:49:15]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:3832kb
  • [2024-10-27 22:49:14]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
using i64 = long long;

struct crop {
    i64 w;
    i64 l, r;

    bool operator<(const crop& z) const {
        return w > z.w;
    }
};
i64 ret;

void solve() {
    int n;
    i64 m;
    cin >> n >> m;
    ret = 0;
    vector<crop> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i].w >> a[i].l >> a[i].r;
        // cerr << i << '\n';
    }
    sort(a.begin(), a.end());
    vector<i64> num(n, 0);  // 各个作物取了多少个
    i64 res = 0;

    i64 nums = 0;  // 总量

    for (int i = 0; i < n; i++) {
        res += a[i].l * a[i].w;
        num[i] = a[i].l;
        nums += num[i];
        // cerr << res << '\n';
    }
    ret = max(ret, res + (m - nums) * a[0].w);

    for (int i = 0; i < n; i++) {
        if (nums + a[i].r - a[i].l < m) {
            nums += a[i].r - a[i].l;
            num[i] = a[i].r;
            res += (a[i].r - a[i].l) * a[i].w;
        } else {
            num[i] += m - nums;
            res += (m - nums) * a[i].w;
            nums = m;
            break;
        }
    }
    // cerr << ret << '\n';

    vector<i64> prefix;
    vector<i64> prefixw;
    prefix.emplace_back(a[0].r - num[0]);
    prefixw.emplace_back(prefix[0] * a[0].w);
    for (int i = 1; i < n; i++) {
        prefix.emplace_back(prefix[i - 1] + (a[i].r - num[i]));
        prefixw.emplace_back(prefixw[i - 1] + (a[i].r - num[i]) * a[i].w);

        i64 tnum = num[i];

        int p = lower_bound(prefix.begin(), prefix.end(), tnum) - prefix.begin();
        // cerr << i << ' ' << p << '\n';
        if (p >= i) {
            ret = max(ret, res + prefixw[i - 1] - prefix[i - 1] * a[i].w);
            // cerr << res + prefixw[i - 1] - prefix[i - 1] * a[i].w << '\n';
        } else {
            if (prefix[p] > tnum && p > 1) {
                // cerr << p << '\n';
                p--;
                ret = max(ret, res + prefixw[p] + a[p + 1].w * (tnum - prefix[p]) - tnum * a[i].w);
            } else if (p == 0) {
                ret = max(ret, res + tnum * a[p].w - tnum * a[i].w);
            } else if (prefix[p] == tnum) {
                ret = max(ret, res + prefixw[p] - tnum * a[i].w);
            }
        }
        // cerr << i << ' ' << ret << '\n';
        // cerr << '\n';
    }
    /*
    for (i64 x : prefix) cerr << x << ' ';
    cerr << '\n';
    for (i64 x : prefixw) cerr << x << ' ';
    cerr << '\n';
*/
    cout << ret << '\n';
}

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);

    int _ = 1;
    while (_--) solve();

    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3516kb

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: 3800kb

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: 3548kb

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: 3512kb

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: 3832kb

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: 3516kb

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: 3512kb

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:

1369583505449

result:

wrong answer 1st lines differ - expected: '1597735409747', found: '1369583505449'