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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#684539#9529. Farm ManagementHojstyer#WA 0ms3812kbC++201.4kb2024-10-28 14:14:352024-10-28 14:14:37

Judging History

你现在查看的是最新测评结果

  • [2024-10-28 14:14:37]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:3812kb
  • [2024-10-28 14:14:35]
  • 提交

answer

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

typedef long long ll;

void solve()
{
    ll n, m;
    cin >> n >> m;
    vector<array<int, 3>> crop(n + 1);
    ll res = 0, t = m;
    for (int i = 1; i <= n; ++i)
    {
        int w, l, r;
        cin >> w >> l >> r;
        crop[i] = {w, l, r};
        res += l * w;
        t -= l;
    }
    sort(crop.begin() + 1, crop.begin() + 1 + n, greater<array<int, 3>>());

    vector<ll> pre(n + 1), pval(n + 1);
    for (int i = 1; i <= n; ++i)
    {
        auto [w, l, r] = crop[i];
        pre[i] = pre[i - 1] + r - l;
        pval[i] = pval[i - 1] + 1ll * (r - l) * w;
    }

    ll ans = res;
    for (int i = 1; i <= n; ++i)
    {
        auto [w, l, r] = crop[i];
        ans = max(ans, res + 1ll * t * w);
        ll nt = t + l;
        int j = lower_bound(pre.begin() + 1, pre.begin() + 1 + n, nt + 1) - pre.begin();
        --j;
        if (j < i)
            ans = max(ans, res - 1ll * l * w + pval[j]);
        else
        {
            int j = lower_bound(pre.begin() + 1, pre.begin() + 1 + n, nt + 1 + r - l) - pre.begin();
            --j;
            ans = max(ans, res - 1ll * r * w + pval[j]);
        }
    }
    cout << ans << '\n';
}

int 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: 3528kb

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: 3812kb

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'