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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#779797#9529. Farm ManagementSunwkingWA 0ms3648kbC++201.6kb2024-11-24 21:49:242024-11-24 21:49:25

Judging History

你现在查看的是最新测评结果

  • [2024-11-24 21:49:25]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:3648kb
  • [2024-11-24 21:49:24]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;
using LL = long long;

void solved(){
    LL n , m;
    cin >> n >> m;

    vector<array<LL , 3>> a(n + 1);
    for(int i = 1 ; i <= n ; i ++ )
        for(int j = 0 ; j < 3 ; j ++ )
            cin >> a[i][j];
    std::sort(a.begin() + 1, a.end() , [&](auto a , auto b){
        return a[0] > b[0];
    });

    vector<LL> R(n + 10) , L(n + 10) , l(n + 10) , r(n + 10);
    for(int i = 1 ; i <= n ; i ++ )
        R[i] = R[i - 1] + a[i][2] * a[i][0] , r[i] = r[i - 1] + a[i][2];
    for(int i = n ; i ; i -- )
        L[i] = L[i + 1] + a[i][1] * a[i][0] , l[i] = l[i + 1] + a[i][1];

    LL ans = 0;
    for(int i = 1 ; i <= n ; i ++ ){
        LL sum = l[i + 1] + r[i - 1];
        if(sum <= m){
            ans = max(ans , L[i + 1] + R[i - 1] + (m - sum) * a[i][0]);
        }else {
            int l1 = 1 , r1 = i - 1;
            LL k = m - l[i + 1];
            while(l1 < r1){
                int mid = (l1 + r1) >> 1;
                LL s = r[mid - 1] + l[mid + 1] - l[i];
                if(s > k) r1 = mid - 1;
                else if(k - s <= a[mid][2] && k - s >= a[mid][1]) {
                    ans = max(ans , R[mid - 1] + L[mid + 1] - a[i][0] * a[i][1] + (k - s) * a[mid][0]);
                    break;
                }else l1 = mid + 1;
            }
        }

//        cout << ans << "\n";
    }

    cout << ans << "\n";
}

int main(){

    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    int t = 1;
//    cin >> t;

    while(t -- )
        solved();

    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3648kb

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: 3608kb

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'