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답안 #292033

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
292033 2020-09-06T08:27:23 Z Diuven 급행열차 20/19 (ROI19_express) C++17
15 / 100
 7000 ms 1048580 KB 
#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <algorithm>
#include <cstring>
#include <string>
#include <cmath>
#include <cassert>
#include <ctime>
#include <vector>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>

using namespace std;

#define pb push_back
#define mp make_pair
#define fs first
#define sc second

const int csize = 1000 * 1000;

int n, m, q;
long long p;

int tc;
long long* dists[csize];
int len[csize];
vector <pair <int, long long> > vertex[csize];

int main () {
//    freopen("input.txt", "r", stdin);
//    freopen("output.txt", "w", stdout);
    
    scanf("%d", &tc);

    for (int tnum = 0; tnum < tc; tnum++) {
        scanf("%d%d%d%lld", &n, &m, &q, &p);

        for (int i = 0; i < m; i++) {
            int u, v;
            long long t;
            scanf("%d%d%lld", &u, &v, &t);
            vertex[v - 1].pb(mp(u - 1, t));
        }

        len[0] = 1;
        dists[0] = new long long[1];
        dists[0][0] = 0ll;
        for (int i = 1; i < n; i++) {
            int total = 0;
            for (int j = 0; j < (int) vertex[i].size(); j++) {
                total += len[vertex[i][j].fs];
            }        
            dists[i] = new long long[total];
            int cur = 0;
            for (int j = 0; j < (int) vertex[i].size(); j++) {
                int tg = vertex[i][j].fs;
                int curlen = len[tg];
                long long toadd = vertex[i][j].sc;
                for (int h = 0; h < curlen; h++) {
                    dists[i][cur++] = dists[tg][h] + toadd;
                }                
            }
            len[i] = cur;
            sort(dists[i], dists[i] + len[i]);

            len[i] = unique(dists[i], dists[i] + len[i]) - dists[i];
        }

        for (int i = 0; i < q; i++) {
            int tg;
            long long tlen;
            scanf("%d%lld", &tg, &tlen);
            tg--;

            int it = lower_bound(dists[tg], dists[tg] + len[tg], tlen) - dists[tg];
            if (it < len[tg] && dists[tg][it] <= tlen * p / (p - 1)) {
                printf("1");
            } else {
                printf("0");
            }
        }

        for (int i = 0; i < n; i++) {
            delete [] dists[i];
            vertex[i].clear();
        }

        printf("\n");
    }

    return 0;
}

Compilation message

main.cpp: In function 'int main()':
main.cpp:37:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   37 |     scanf("%d", &tc);
      |     ~~~~~^~~~~~~~~~~
main.cpp:40:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   40 |         scanf("%d%d%d%lld", &n, &m, &q, &p);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
main.cpp:45:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   45 |             scanf("%d%d%lld", &u, &v, &t);
      |             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
main.cpp:76:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   76 |             scanf("%d%lld", &tg, &tlen);
      |             ~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 23808 KB Output is correct
2 Correct 17 ms 23808 KB Output is correct
3 Correct 17 ms 23808 KB Output is correct
4 Correct 16 ms 23808 KB Output is correct
5 Correct 23 ms 23808 KB Output is correct
6 Correct 17 ms 23808 KB Output is correct
7 Correct 19 ms 23808 KB Output is correct
8 Correct 16 ms 23864 KB Output is correct
9 Correct 16 ms 23804 KB Output is correct
10 Correct 20 ms 23808 KB Output is correct
11 Correct 17 ms 23808 KB Output is correct
12 Correct 27 ms 23808 KB Output is correct
13 Correct 28 ms 23808 KB Output is correct
14 Correct 28 ms 23936 KB Output is correct
15 Correct 24 ms 23808 KB Output is correct
16 Correct 24 ms 23768 KB Output is correct
17 Correct 30 ms 23808 KB Output is correct
18 Correct 29 ms 23808 KB Output is correct
19 Correct 25 ms 23808 KB Output is correct
20 Correct 24 ms 23808 KB Output is correct
21 Correct 26 ms 23824 KB Output is correct
22 Correct 23 ms 23808 KB Output is correct
23 Correct 23 ms 23808 KB Output is correct
24 Correct 25 ms 23808 KB Output is correct
25 Correct 22 ms 23808 KB Output is correct
26 Correct 22 ms 23808 KB Output is correct
27 Correct 22 ms 23808 KB Output is correct
28 Correct 22 ms 23936 KB Output is correct
29 Correct 22 ms 23808 KB Output is correct
30 Correct 22 ms 23808 KB Output is correct

Subtask #2
0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 17 ms 23804 KB Output is correct
2 Correct 16 ms 23808 KB Output is correct
3 Correct 16 ms 23808 KB Output is correct
4 Correct 16 ms 23808 KB Output is correct
5 Correct 16 ms 23936 KB Output is correct
6 Correct 17 ms 23808 KB Output is correct
7 Correct 17 ms 23808 KB Output is correct
8 Correct 17 ms 23808 KB Output is correct
9 Correct 17 ms 23784 KB Output is correct
10 Correct 23 ms 23936 KB Output is correct
11 Correct 35 ms 26616 KB Output is correct
12 Correct 23 ms 24168 KB Output is correct
13 Correct 51 ms 29432 KB Output is correct
14 Correct 20 ms 23808 KB Output is correct
15 Correct 19 ms 23808 KB Output is correct
16 Correct 20 ms 23868 KB Output is correct
17 Correct 20 ms 23808 KB Output is correct
18 Correct 20 ms 23808 KB Output is correct
19 Correct 21 ms 23860 KB Output is correct
20 Correct 20 ms 23896 KB Output is correct
21 Correct 22 ms 23828 KB Output is correct
22 Correct 21 ms 24064 KB Output is correct
23 Correct 22 ms 24192 KB Output is correct
24 Correct 26 ms 24832 KB Output is correct
25 Correct 24 ms 24704 KB Output is correct
26 Correct 34 ms 24996 KB Output is correct
27 Correct 26 ms 24576 KB Output is correct
28 Correct 19 ms 23808 KB Output is correct
29 Correct 19 ms 23808 KB Output is correct
30 Correct 18 ms 23808 KB Output is correct
31 Correct 18 ms 23808 KB Output is correct
32 Execution timed out 7110 ms 549300 KB Time limit exceeded

Subtask #3
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 17 ms 23808 KB Output is correct
2 Execution timed out 7099 ms 562256 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 7138 ms 562040 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 16 ms 23808 KB Output is correct
2 Correct 16 ms 23808 KB Output is correct
3 Correct 17 ms 23808 KB Output is correct
4 Runtime error 6159 ms 1048580 KB Execution killed with signal 9
5 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 658 ms 32720 KB Output is correct
2 Runtime error 6225 ms 1048580 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #7
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 726 ms 32620 KB Output is correct
2 Runtime error 6126 ms 1048580 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -