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답안 #292832

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
292832 2020-09-07T13:58:16 Z 문홍윤(#5817) 급행열차 20/19 (ROI19_express) C++17
67 / 100
 5000 ms 1048580 KB 
#include <bits/stdc++.h>
#define mp make_pair
#define eb emplace_back
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define svec(x) sort(all(x))
#define press(x) x.erase(unique(all(x)), x.end());
using namespace std;
typedef long long LL;
typedef pair<int, int> pii;
typedef pair<int, LL> pil;
typedef pair<LL, int> pli;
typedef pair<LL, LL> pll;
const int INF=1e9;
const LL LLINF=2e17;

int n, m, q, indeg[500010];
int topo[500010], re, fr;
LL p;

vector<pil> link[500010], rlink[500010];
vector<LL> dp[500010];
char str[500010];

void cl(int num, int qu){
    re=fr=0;
    for(int i=1; i<=num; i++){
        link[i].clear();
        rlink[i].clear();
        dp[i].clear();
    }
    for(int i=1; i<=qu; i++)str[i]=0;
}

void merge_dp(int num){
    int sz=rlink[num].size();
    LL st=0;
    vector<int> pv(sz);
    while(1){
        LL minn=LLINF;
        int minnum=-1;
        for(int i=0; i<pv.size(); i++){
            int nw=rlink[num][i].F;
            LL c=rlink[num][i].S;
            if(pv[i]==dp[nw].size())continue;
            if(minn>dp[nw][pv[i]]+c){
                minn=dp[nw][pv[i]]+c;
                minnum=i;
            }
        }
        if(minnum==-1)break;
        if(st*p/(p-1)<minn){
            dp[num].eb(minn);
            dp[num].eb(minn);
            st=minn;
        }
        else dp[num][dp[num].size()-1]=minn;
        pv[minnum]++;
    }
    press(dp[num]);
}

void solve(){
    scanf("%d %d %d %lld", &n, &m, &q, &p);
    for(int i=1; i<=m; i++){
        int a, b; LL c;
        scanf("%d %d %lld", &a, &b, &c);
        link[a].eb(b, c);
        rlink[b].eb(a, c);
        indeg[b]++;
    }
    for(int i=1; i<=n; i++){
        if(!indeg[i])topo[++re]=i;
    }
    for(fr=1; fr<=re; fr++){
        for(auto i:link[topo[fr]]){
            indeg[i.F]--;
            if(!indeg[i.F])topo[++re]=i.F;
        }
    }
    dp[1].eb(0);
    for(int i=2; i<=n; i++)merge_dp(topo[i]);
    for(int i=1; i<=q; i++){
        int a; LL s, e;
        scanf("%d %lld", &a, &s);
        e=s*p/(p-1);
        int num=upper_bound(all(dp[a]), e)-lower_bound(all(dp[a]), s);
        if(num)str[i]='1';
        else str[i]='0';
    }
    printf("%s\n", str+1);
    cl(n, q);
}

int main(){
    int t;
    scanf("%d", &t);
    while(t--)solve();
}

Compilation message

express.cpp: In function 'void merge_dp(int)':
express.cpp:43:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |         for(int i=0; i<pv.size(); i++){
      |                      ~^~~~~~~~~~
express.cpp:46:21: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |             if(pv[i]==dp[nw].size())continue;
express.cpp: In function 'void solve()':
express.cpp:65:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   65 |     scanf("%d %d %d %lld", &n, &m, &q, &p);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
express.cpp:68:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   68 |         scanf("%d %d %lld", &a, &b, &c);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
express.cpp:86:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   86 |         scanf("%d %lld", &a, &s);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~
express.cpp: In function 'int main()':
express.cpp:98:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   98 |     scanf("%d", &t);
      |     ~~~~~^~~~~~~~~~

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 35584 KB Output is correct
2 Correct 24 ms 35584 KB Output is correct
3 Correct 24 ms 35584 KB Output is correct
4 Correct 24 ms 35584 KB Output is correct
5 Correct 32 ms 35576 KB Output is correct
6 Correct 24 ms 35584 KB Output is correct
7 Correct 24 ms 35584 KB Output is correct
8 Correct 24 ms 35584 KB Output is correct
9 Correct 26 ms 35584 KB Output is correct
10 Correct 24 ms 35584 KB Output is correct
11 Correct 24 ms 35584 KB Output is correct
12 Correct 32 ms 35584 KB Output is correct
13 Correct 33 ms 35584 KB Output is correct
14 Correct 34 ms 35584 KB Output is correct
15 Correct 32 ms 35584 KB Output is correct
16 Correct 31 ms 35584 KB Output is correct
17 Correct 33 ms 35584 KB Output is correct
18 Correct 33 ms 35584 KB Output is correct
19 Correct 32 ms 35584 KB Output is correct
20 Correct 32 ms 35576 KB Output is correct
21 Correct 32 ms 35584 KB Output is correct
22 Correct 31 ms 35584 KB Output is correct
23 Correct 30 ms 35584 KB Output is correct
24 Correct 29 ms 35576 KB Output is correct
25 Correct 29 ms 35584 KB Output is correct
26 Correct 30 ms 35584 KB Output is correct
27 Correct 29 ms 35584 KB Output is correct
28 Correct 30 ms 35584 KB Output is correct
29 Correct 30 ms 35584 KB Output is correct
30 Correct 31 ms 35584 KB Output is correct

Subtask #2
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 35584 KB Output is correct
2 Correct 25 ms 35584 KB Output is correct
3 Correct 25 ms 35584 KB Output is correct
4 Correct 24 ms 35584 KB Output is correct
5 Correct 25 ms 35584 KB Output is correct
6 Correct 25 ms 35584 KB Output is correct
7 Correct 24 ms 35584 KB Output is correct
8 Correct 24 ms 35584 KB Output is correct
9 Correct 25 ms 35584 KB Output is correct
10 Correct 28 ms 35744 KB Output is correct
11 Correct 43 ms 36220 KB Output is correct
12 Correct 30 ms 36096 KB Output is correct
13 Correct 34 ms 36216 KB Output is correct
14 Correct 27 ms 35584 KB Output is correct
15 Correct 27 ms 35576 KB Output is correct
16 Correct 27 ms 35576 KB Output is correct
17 Correct 29 ms 35584 KB Output is correct
18 Correct 27 ms 35584 KB Output is correct
19 Correct 29 ms 35576 KB Output is correct
20 Correct 29 ms 35584 KB Output is correct
21 Correct 28 ms 35584 KB Output is correct
22 Correct 29 ms 35960 KB Output is correct
23 Correct 31 ms 36088 KB Output is correct
24 Correct 29 ms 35712 KB Output is correct
25 Correct 28 ms 35712 KB Output is correct
26 Correct 32 ms 35704 KB Output is correct
27 Correct 29 ms 35704 KB Output is correct
28 Correct 26 ms 35584 KB Output is correct
29 Correct 26 ms 35584 KB Output is correct
30 Correct 26 ms 35564 KB Output is correct
31 Correct 26 ms 35584 KB Output is correct
32 Correct 962 ms 39608 KB Output is correct

Subtask #3
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 35712 KB Output is correct
2 Correct 734 ms 73068 KB Output is correct
3 Correct 461 ms 43348 KB Output is correct
4 Correct 426 ms 39672 KB Output is correct
5 Correct 297 ms 36348 KB Output is correct
6 Correct 518 ms 48120 KB Output is correct
7 Correct 441 ms 42068 KB Output is correct
8 Correct 499 ms 48376 KB Output is correct
9 Correct 413 ms 42092 KB Output is correct
10 Correct 448 ms 48252 KB Output is correct
11 Correct 384 ms 42104 KB Output is correct
12 Correct 107 ms 35712 KB Output is correct
13 Correct 29 ms 35584 KB Output is correct
14 Correct 30 ms 35584 KB Output is correct
15 Correct 32 ms 35584 KB Output is correct
16 Correct 33 ms 35648 KB Output is correct
17 Correct 43 ms 35584 KB Output is correct
18 Correct 129 ms 36344 KB Output is correct
19 Correct 39 ms 35584 KB Output is correct
20 Correct 55 ms 35644 KB Output is correct
21 Correct 55 ms 35704 KB Output is correct
22 Correct 57 ms 35648 KB Output is correct
23 Correct 349 ms 97272 KB Output is correct
24 Correct 960 ms 239708 KB Output is correct

Subtask #4
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 35712 KB Output is correct
2 Correct 734 ms 73068 KB Output is correct
3 Correct 461 ms 43348 KB Output is correct
4 Correct 426 ms 39672 KB Output is correct
5 Correct 297 ms 36348 KB Output is correct
6 Correct 518 ms 48120 KB Output is correct
7 Correct 441 ms 42068 KB Output is correct
8 Correct 499 ms 48376 KB Output is correct
9 Correct 413 ms 42092 KB Output is correct
10 Correct 448 ms 48252 KB Output is correct
11 Correct 384 ms 42104 KB Output is correct
12 Correct 107 ms 35712 KB Output is correct
13 Correct 29 ms 35584 KB Output is correct
14 Correct 30 ms 35584 KB Output is correct
15 Correct 32 ms 35584 KB Output is correct
16 Correct 33 ms 35648 KB Output is correct
17 Correct 43 ms 35584 KB Output is correct
18 Correct 129 ms 36344 KB Output is correct
19 Correct 39 ms 35584 KB Output is correct
20 Correct 55 ms 35644 KB Output is correct
21 Correct 55 ms 35704 KB Output is correct
22 Correct 57 ms 35648 KB Output is correct
23 Correct 349 ms 97272 KB Output is correct
24 Correct 960 ms 239708 KB Output is correct
25 Correct 966 ms 75664 KB Output is correct
26 Correct 847 ms 55160 KB Output is correct
27 Correct 821 ms 45540 KB Output is correct
28 Correct 671 ms 38136 KB Output is correct
29 Correct 535 ms 36216 KB Output is correct
30 Correct 580 ms 37044 KB Output is correct
31 Correct 687 ms 66656 KB Output is correct
32 Correct 570 ms 51044 KB Output is correct
33 Correct 554 ms 51276 KB Output is correct
34 Correct 443 ms 43260 KB Output is correct
35 Correct 607 ms 66572 KB Output is correct
36 Correct 498 ms 50936 KB Output is correct
37 Correct 148 ms 35996 KB Output is correct
38 Correct 33 ms 35576 KB Output is correct
39 Correct 34 ms 36352 KB Output is correct
40 Runtime error 3379 ms 1048580 KB Execution killed with signal 9
41 Halted 0 ms 0 KB -

Subtask #5
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 35584 KB Output is correct
2 Correct 24 ms 35584 KB Output is correct
3 Correct 25 ms 35576 KB Output is correct
4 Correct 31 ms 35704 KB Output is correct
5 Correct 25 ms 35648 KB Output is correct
6 Correct 26 ms 35576 KB Output is correct
7 Correct 25 ms 35584 KB Output is correct
8 Correct 28 ms 37376 KB Output is correct
9 Correct 26 ms 35584 KB Output is correct
10 Correct 26 ms 35584 KB Output is correct
11 Correct 28 ms 35704 KB Output is correct
12 Correct 26 ms 35584 KB Output is correct
13 Correct 26 ms 35584 KB Output is correct
14 Correct 28 ms 35712 KB Output is correct
15 Correct 27 ms 35704 KB Output is correct
16 Correct 26 ms 35712 KB Output is correct
17 Correct 29 ms 35968 KB Output is correct
18 Correct 30 ms 36480 KB Output is correct
19 Correct 26 ms 35712 KB Output is correct
20 Correct 29 ms 36352 KB Output is correct
21 Correct 32 ms 36640 KB Output is correct
22 Correct 28 ms 36224 KB Output is correct
23 Correct 32 ms 36344 KB Output is correct
24 Correct 32 ms 36216 KB Output is correct
25 Correct 32 ms 36608 KB Output is correct
26 Correct 25 ms 35584 KB Output is correct
27 Correct 24 ms 35584 KB Output is correct
28 Correct 25 ms 35584 KB Output is correct
29 Correct 25 ms 35584 KB Output is correct
30 Correct 25 ms 35584 KB Output is correct
31 Correct 24 ms 35584 KB Output is correct
32 Correct 25 ms 35712 KB Output is correct
33 Correct 25 ms 35584 KB Output is correct
34 Correct 26 ms 35584 KB Output is correct
35 Correct 26 ms 35584 KB Output is correct
36 Correct 29 ms 35584 KB Output is correct
37 Correct 26 ms 35584 KB Output is correct
38 Correct 27 ms 35584 KB Output is correct
39 Correct 27 ms 35584 KB Output is correct
40 Correct 27 ms 35584 KB Output is correct
41 Correct 27 ms 35584 KB Output is correct
42 Correct 27 ms 35584 KB Output is correct
43 Correct 38 ms 39416 KB Output is correct
44 Correct 38 ms 39416 KB Output is correct

Subtask #6
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 35584 KB Output is correct
2 Correct 24 ms 35584 KB Output is correct
3 Correct 25 ms 35576 KB Output is correct
4 Correct 31 ms 35704 KB Output is correct
5 Correct 25 ms 35648 KB Output is correct
6 Correct 26 ms 35576 KB Output is correct
7 Correct 25 ms 35584 KB Output is correct
8 Correct 28 ms 37376 KB Output is correct
9 Correct 26 ms 35584 KB Output is correct
10 Correct 26 ms 35584 KB Output is correct
11 Correct 28 ms 35704 KB Output is correct
12 Correct 26 ms 35584 KB Output is correct
13 Correct 26 ms 35584 KB Output is correct
14 Correct 28 ms 35712 KB Output is correct
15 Correct 27 ms 35704 KB Output is correct
16 Correct 26 ms 35712 KB Output is correct
17 Correct 29 ms 35968 KB Output is correct
18 Correct 30 ms 36480 KB Output is correct
19 Correct 26 ms 35712 KB Output is correct
20 Correct 29 ms 36352 KB Output is correct
21 Correct 32 ms 36640 KB Output is correct
22 Correct 28 ms 36224 KB Output is correct
23 Correct 32 ms 36344 KB Output is correct
24 Correct 32 ms 36216 KB Output is correct
25 Correct 32 ms 36608 KB Output is correct
26 Correct 25 ms 35584 KB Output is correct
27 Correct 24 ms 35584 KB Output is correct
28 Correct 25 ms 35584 KB Output is correct
29 Correct 25 ms 35584 KB Output is correct
30 Correct 25 ms 35584 KB Output is correct
31 Correct 24 ms 35584 KB Output is correct
32 Correct 25 ms 35712 KB Output is correct
33 Correct 25 ms 35584 KB Output is correct
34 Correct 26 ms 35584 KB Output is correct
35 Correct 26 ms 35584 KB Output is correct
36 Correct 29 ms 35584 KB Output is correct
37 Correct 26 ms 35584 KB Output is correct
38 Correct 27 ms 35584 KB Output is correct
39 Correct 27 ms 35584 KB Output is correct
40 Correct 27 ms 35584 KB Output is correct
41 Correct 27 ms 35584 KB Output is correct
42 Correct 27 ms 35584 KB Output is correct
43 Correct 38 ms 39416 KB Output is correct
44 Correct 38 ms 39416 KB Output is correct
45 Correct 868 ms 54776 KB Output is correct
46 Correct 2698 ms 100284 KB Output is correct
47 Correct 1222 ms 83344 KB Output is correct
48 Correct 584 ms 37624 KB Output is correct
49 Correct 966 ms 38776 KB Output is correct
50 Correct 654 ms 36472 KB Output is correct
51 Correct 26 ms 35576 KB Output is correct
52 Correct 25 ms 35584 KB Output is correct
53 Correct 50 ms 35584 KB Output is correct
54 Correct 37 ms 35616 KB Output is correct
55 Correct 488 ms 38520 KB Output is correct
56 Correct 1111 ms 37116 KB Output is correct
57 Correct 595 ms 36728 KB Output is correct
58 Correct 605 ms 40312 KB Output is correct
59 Correct 1004 ms 37112 KB Output is correct
60 Correct 477 ms 39288 KB Output is correct
61 Correct 1063 ms 72184 KB Output is correct
62 Execution timed out 5099 ms 57720 KB Time limit exceeded
63 Halted 0 ms 0 KB -

Subtask #7
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 35584 KB Output is correct
2 Correct 24 ms 35584 KB Output is correct
3 Correct 24 ms 35584 KB Output is correct
4 Correct 24 ms 35584 KB Output is correct
5 Correct 32 ms 35576 KB Output is correct
6 Correct 24 ms 35584 KB Output is correct
7 Correct 24 ms 35584 KB Output is correct
8 Correct 24 ms 35584 KB Output is correct
9 Correct 26 ms 35584 KB Output is correct
10 Correct 24 ms 35584 KB Output is correct
11 Correct 24 ms 35584 KB Output is correct
12 Correct 32 ms 35584 KB Output is correct
13 Correct 33 ms 35584 KB Output is correct
14 Correct 34 ms 35584 KB Output is correct
15 Correct 32 ms 35584 KB Output is correct
16 Correct 31 ms 35584 KB Output is correct
17 Correct 33 ms 35584 KB Output is correct
18 Correct 33 ms 35584 KB Output is correct
19 Correct 32 ms 35584 KB Output is correct
20 Correct 32 ms 35576 KB Output is correct
21 Correct 32 ms 35584 KB Output is correct
22 Correct 31 ms 35584 KB Output is correct
23 Correct 30 ms 35584 KB Output is correct
24 Correct 29 ms 35576 KB Output is correct
25 Correct 29 ms 35584 KB Output is correct
26 Correct 30 ms 35584 KB Output is correct
27 Correct 29 ms 35584 KB Output is correct
28 Correct 30 ms 35584 KB Output is correct
29 Correct 30 ms 35584 KB Output is correct
30 Correct 31 ms 35584 KB Output is correct
31 Correct 25 ms 35584 KB Output is correct
32 Correct 25 ms 35584 KB Output is correct
33 Correct 25 ms 35584 KB Output is correct
34 Correct 24 ms 35584 KB Output is correct
35 Correct 25 ms 35584 KB Output is correct
36 Correct 25 ms 35584 KB Output is correct
37 Correct 24 ms 35584 KB Output is correct
38 Correct 24 ms 35584 KB Output is correct
39 Correct 25 ms 35584 KB Output is correct
40 Correct 28 ms 35744 KB Output is correct
41 Correct 43 ms 36220 KB Output is correct
42 Correct 30 ms 36096 KB Output is correct
43 Correct 34 ms 36216 KB Output is correct
44 Correct 27 ms 35584 KB Output is correct
45 Correct 27 ms 35576 KB Output is correct
46 Correct 27 ms 35576 KB Output is correct
47 Correct 29 ms 35584 KB Output is correct
48 Correct 27 ms 35584 KB Output is correct
49 Correct 29 ms 35576 KB Output is correct
50 Correct 29 ms 35584 KB Output is correct
51 Correct 28 ms 35584 KB Output is correct
52 Correct 29 ms 35960 KB Output is correct
53 Correct 31 ms 36088 KB Output is correct
54 Correct 29 ms 35712 KB Output is correct
55 Correct 28 ms 35712 KB Output is correct
56 Correct 32 ms 35704 KB Output is correct
57 Correct 29 ms 35704 KB Output is correct
58 Correct 26 ms 35584 KB Output is correct
59 Correct 26 ms 35584 KB Output is correct
60 Correct 26 ms 35564 KB Output is correct
61 Correct 26 ms 35584 KB Output is correct
62 Correct 962 ms 39608 KB Output is correct
63 Correct 25 ms 35712 KB Output is correct
64 Correct 734 ms 73068 KB Output is correct
65 Correct 461 ms 43348 KB Output is correct
66 Correct 426 ms 39672 KB Output is correct
67 Correct 297 ms 36348 KB Output is correct
68 Correct 518 ms 48120 KB Output is correct
69 Correct 441 ms 42068 KB Output is correct
70 Correct 499 ms 48376 KB Output is correct
71 Correct 413 ms 42092 KB Output is correct
72 Correct 448 ms 48252 KB Output is correct
73 Correct 384 ms 42104 KB Output is correct
74 Correct 107 ms 35712 KB Output is correct
75 Correct 29 ms 35584 KB Output is correct
76 Correct 30 ms 35584 KB Output is correct
77 Correct 32 ms 35584 KB Output is correct
78 Correct 33 ms 35648 KB Output is correct
79 Correct 43 ms 35584 KB Output is correct
80 Correct 129 ms 36344 KB Output is correct
81 Correct 39 ms 35584 KB Output is correct
82 Correct 55 ms 35644 KB Output is correct
83 Correct 55 ms 35704 KB Output is correct
84 Correct 57 ms 35648 KB Output is correct
85 Correct 349 ms 97272 KB Output is correct
86 Correct 960 ms 239708 KB Output is correct
87 Correct 966 ms 75664 KB Output is correct
88 Correct 847 ms 55160 KB Output is correct
89 Correct 821 ms 45540 KB Output is correct
90 Correct 671 ms 38136 KB Output is correct
91 Correct 535 ms 36216 KB Output is correct
92 Correct 580 ms 37044 KB Output is correct
93 Correct 687 ms 66656 KB Output is correct
94 Correct 570 ms 51044 KB Output is correct
95 Correct 554 ms 51276 KB Output is correct
96 Correct 443 ms 43260 KB Output is correct
97 Correct 607 ms 66572 KB Output is correct
98 Correct 498 ms 50936 KB Output is correct
99 Correct 148 ms 35996 KB Output is correct
100 Correct 33 ms 35576 KB Output is correct
101 Correct 34 ms 36352 KB Output is correct
102 Runtime error 3379 ms 1048580 KB Execution killed with signal 9
103 Halted 0 ms 0 KB -