QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#593442#8866. Drying Laundrypmt2018WA 426ms5884kbC++201.8kb2024-09-27 14:07:372024-09-27 14:07:38

Judging History

你现在查看的是最新测评结果

  • [2024-09-27 14:07:38]
  • 评测
  • 测评结果:WA
  • 用时:426ms
  • 内存:5884kb
  • [2024-09-27 14:07:37]
  • 提交

answer

/*
Problem : B - 喵了个喵
Solver : pmt2018
*/

#include<bits/stdc++.h>

#define pb push_back
#define mp make_pair
#define fi first 
#define se second

#define _debug(fmt, ...) fprintf(stderr, "\033[91m[%s %3d]: " fmt "\n\033[0m",__func__,__LINE__, ##__VA_ARGS__)

using namespace std;

typedef pair<int, int> pii;
typedef vector<int> vi;
typedef long long ll;
typedef unsigned long long ull;

const int maxn = 30007, maxq = 300007, maxl = 300007;
const int INF = 0x3f3f3f3f;
#define MAXL 300000

int N, Q;

struct sheets{
    int d, tfast, tslow;
}s[maxn];

int suf_fast[maxn];
ll sumd[maxn];

bitset<maxl<<1> knapsack;

int ans[maxl];

int main(){
    scanf("%d%d", &N, &Q);
    for (int i = 1; i <= N; i++) {
        scanf("%d%d%d", &s[i].d, &s[i].tfast, &s[i].tslow);
    }

    sort(s + 1, s + N + 1, [](const sheets &a, const sheets &b){
        return a.tslow < b.tslow;
    });

    for (int i = N; i >= 1; i--) {
        suf_fast[i] = max(s[i].tfast, suf_fast[i + 1]);
    }

    for (int i = 1; i <= N; i++) {
        sumd[i] = sumd[i - 1] + (ll)s[i].d;
    }

    for (int i = 0; i <= MAXL; i++) ans[i] = INF;
    if (sumd[N] <= (ll)MAXL) ans[sumd[N]] = suf_fast[1];
    knapsack.set(0);
    for (int i = 1; i <= N; i++) {
        knapsack |= knapsack << s[i].d;
        if (sumd[i] / 2 + sumd[N] - sumd[i] > (ll)MAXL) continue;
        
        int len = (int)(sumd[N] - sumd[i]) + (int)knapsack._Find_next((sumd[i] - 1) / 2);
        if(len <= MAXL) ans[len] = max(s[i].tslow, suf_fast[i + 1]);
    }
    
    for (int i = 1; i <= MAXL; i++) {
        ans[i] = min(ans[i - 1], ans[i]);
    }

    while (Q--) {
        int l;
        scanf("%d", &l);
        if (ans[l] == INF) printf("-1\n");
        else printf("%d\n", ans[l]);
    }
    
    
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 0
Wrong Answer
time: 426ms
memory: 5884kb

input:

30000 300000
2 255945072 661001220
2 68592698 870026391
2 297602072 943696446
2 423786358 574645263
2 178914703 647767179
2 198609024 717883631
2 167020579 942479667
2 63119081 995866587
2 347306369 881413517
2 58674847 601956876
2 110801873 707995015
2 155453326 765668358
2 438060979 649128264
2 20...

output:

-1
780386172
-1
882630795
-1
-1
694190157
535268040
-1
-1
822780178
867163401
-1
-1
787724542
-1
-1
843406425
-1
608088477
-1
678487355
611519637
956002698
-1
-1
691131846
-1
-1
812320879
-1
677850117
-1
537706551
-1
893747900
786791412
-1
-1
715094556
-1
810021220
724602450
950838618
686685989
-1
-...

result:

wrong answer 6818th lines differ - expected: '500181714', found: '500219178'