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답안 #292838

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
292838 2020-09-07T14:07:16 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=5e16;

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++){
        vector<pil>().swap(link[i]);
        vector<pil>().swap(rlink[i]);
        vector<LL>().swap(dp[i]);
    }
    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 25 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 25 ms 35584 KB Output is correct
8 Correct 26 ms 35712 KB Output is correct
9 Correct 25 ms 35584 KB Output is correct
10 Correct 24 ms 35584 KB Output is correct
11 Correct 25 ms 35584 KB Output is correct
12 Correct 35 ms 35576 KB Output is correct
13 Correct 36 ms 35584 KB Output is correct
14 Correct 35 ms 35704 KB Output is correct
15 Correct 34 ms 35584 KB Output is correct
16 Correct 34 ms 35584 KB Output is correct
17 Correct 37 ms 35584 KB Output is correct
18 Correct 35 ms 35576 KB Output is correct
19 Correct 36 ms 35584 KB Output is correct
20 Correct 37 ms 35584 KB Output is correct
21 Correct 34 ms 35584 KB Output is correct
22 Correct 34 ms 35584 KB Output is correct
23 Correct 32 ms 35584 KB Output is correct
24 Correct 31 ms 35576 KB Output is correct
25 Correct 31 ms 35584 KB Output is correct
26 Correct 32 ms 35584 KB Output is correct
27 Correct 31 ms 35584 KB Output is correct
28 Correct 32 ms 35712 KB Output is correct
29 Correct 31 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 24 ms 35584 KB Output is correct
2 Correct 24 ms 35584 KB Output is correct
3 Correct 25 ms 35584 KB Output is correct
4 Correct 24 ms 35612 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 35736 KB Output is correct
10 Correct 30 ms 35712 KB Output is correct
11 Correct 44 ms 36472 KB Output is correct
12 Correct 30 ms 36096 KB Output is correct
13 Correct 34 ms 36096 KB Output is correct
14 Correct 29 ms 35584 KB Output is correct
15 Correct 28 ms 35584 KB Output is correct
16 Correct 28 ms 35584 KB Output is correct
17 Correct 30 ms 35584 KB Output is correct
18 Correct 28 ms 35584 KB Output is correct
19 Correct 30 ms 35584 KB Output is correct
20 Correct 30 ms 35576 KB Output is correct
21 Correct 29 ms 35584 KB Output is correct
22 Correct 30 ms 36120 KB Output is correct
23 Correct 32 ms 36088 KB Output is correct
24 Correct 28 ms 35584 KB Output is correct
25 Correct 29 ms 35584 KB Output is correct
26 Correct 31 ms 35584 KB Output is correct
27 Correct 29 ms 35704 KB Output is correct
28 Correct 27 ms 35584 KB Output is correct
29 Correct 26 ms 35584 KB Output is correct
30 Correct 26 ms 35584 KB Output is correct
31 Correct 26 ms 35584 KB Output is correct
32 Correct 952 ms 39748 KB Output is correct

Subtask #3
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 35584 KB Output is correct
2 Correct 730 ms 73172 KB Output is correct
3 Correct 594 ms 43256 KB Output is correct
4 Correct 517 ms 39544 KB Output is correct
5 Correct 416 ms 36496 KB Output is correct
6 Correct 616 ms 47864 KB Output is correct
7 Correct 533 ms 42060 KB Output is correct
8 Correct 624 ms 48096 KB Output is correct
9 Correct 547 ms 41976 KB Output is correct
10 Correct 562 ms 47740 KB Output is correct
11 Correct 498 ms 41592 KB Output is correct
12 Correct 141 ms 35800 KB Output is correct
13 Correct 31 ms 35616 KB Output is correct
14 Correct 32 ms 35704 KB Output is correct
15 Correct 35 ms 35584 KB Output is correct
16 Correct 35 ms 35584 KB Output is correct
17 Correct 51 ms 35704 KB Output is correct
18 Correct 174 ms 36412 KB Output is correct
19 Correct 45 ms 35704 KB Output is correct
20 Correct 67 ms 35584 KB Output is correct
21 Correct 67 ms 35584 KB Output is correct
22 Correct 68 ms 35584 KB Output is correct
23 Correct 366 ms 97344 KB Output is correct
24 Correct 958 ms 239552 KB Output is correct

Subtask #4
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 35584 KB Output is correct
2 Correct 730 ms 73172 KB Output is correct
3 Correct 594 ms 43256 KB Output is correct
4 Correct 517 ms 39544 KB Output is correct
5 Correct 416 ms 36496 KB Output is correct
6 Correct 616 ms 47864 KB Output is correct
7 Correct 533 ms 42060 KB Output is correct
8 Correct 624 ms 48096 KB Output is correct
9 Correct 547 ms 41976 KB Output is correct
10 Correct 562 ms 47740 KB Output is correct
11 Correct 498 ms 41592 KB Output is correct
12 Correct 141 ms 35800 KB Output is correct
13 Correct 31 ms 35616 KB Output is correct
14 Correct 32 ms 35704 KB Output is correct
15 Correct 35 ms 35584 KB Output is correct
16 Correct 35 ms 35584 KB Output is correct
17 Correct 51 ms 35704 KB Output is correct
18 Correct 174 ms 36412 KB Output is correct
19 Correct 45 ms 35704 KB Output is correct
20 Correct 67 ms 35584 KB Output is correct
21 Correct 67 ms 35584 KB Output is correct
22 Correct 68 ms 35584 KB Output is correct
23 Correct 366 ms 97344 KB Output is correct
24 Correct 958 ms 239552 KB Output is correct
25 Correct 984 ms 75796 KB Output is correct
26 Correct 1032 ms 55396 KB Output is correct
27 Correct 952 ms 45560 KB Output is correct
28 Correct 895 ms 38264 KB Output is correct
29 Correct 673 ms 36344 KB Output is correct
30 Correct 740 ms 37392 KB Output is correct
31 Correct 816 ms 66680 KB Output is correct
32 Correct 726 ms 51064 KB Output is correct
33 Correct 671 ms 51192 KB Output is correct
34 Correct 568 ms 43396 KB Output is correct
35 Correct 756 ms 66552 KB Output is correct
36 Correct 656 ms 51064 KB Output is correct
37 Correct 228 ms 35968 KB Output is correct
38 Correct 37 ms 35584 KB Output is correct
39 Correct 36 ms 36352 KB Output is correct
40 Runtime error 3414 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 26 ms 35584 KB Output is correct
4 Correct 29 ms 35704 KB Output is correct
5 Correct 25 ms 35712 KB Output is correct
6 Correct 26 ms 35584 KB Output is correct
7 Correct 26 ms 35576 KB Output is correct
8 Correct 29 ms 37368 KB Output is correct
9 Correct 27 ms 35584 KB Output is correct
10 Correct 26 ms 35584 KB Output is correct
11 Correct 28 ms 35584 KB Output is correct
12 Correct 27 ms 35584 KB Output is correct
13 Correct 30 ms 35616 KB Output is correct
14 Correct 29 ms 35692 KB Output is correct
15 Correct 29 ms 35712 KB Output is correct
16 Correct 26 ms 35712 KB Output is correct
17 Correct 31 ms 35840 KB Output is correct
18 Correct 30 ms 36472 KB Output is correct
19 Correct 26 ms 35840 KB Output is correct
20 Correct 29 ms 36352 KB Output is correct
21 Correct 31 ms 36608 KB Output is correct
22 Correct 27 ms 36096 KB Output is correct
23 Correct 30 ms 36344 KB Output is correct
24 Correct 28 ms 36224 KB Output is correct
25 Correct 31 ms 36604 KB Output is correct
26 Correct 24 ms 35584 KB Output is correct
27 Correct 25 ms 35576 KB Output is correct
28 Correct 28 ms 35576 KB Output is correct
29 Correct 25 ms 35584 KB Output is correct
30 Correct 25 ms 35584 KB Output is correct
31 Correct 26 ms 35616 KB Output is correct
32 Correct 25 ms 35584 KB Output is correct
33 Correct 29 ms 35576 KB Output is correct
34 Correct 26 ms 35584 KB Output is correct
35 Correct 27 ms 35584 KB Output is correct
36 Correct 27 ms 35584 KB Output is correct
37 Correct 26 ms 35584 KB Output is correct
38 Correct 28 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 39 ms 39424 KB Output is correct
44 Correct 39 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 26 ms 35584 KB Output is correct
4 Correct 29 ms 35704 KB Output is correct
5 Correct 25 ms 35712 KB Output is correct
6 Correct 26 ms 35584 KB Output is correct
7 Correct 26 ms 35576 KB Output is correct
8 Correct 29 ms 37368 KB Output is correct
9 Correct 27 ms 35584 KB Output is correct
10 Correct 26 ms 35584 KB Output is correct
11 Correct 28 ms 35584 KB Output is correct
12 Correct 27 ms 35584 KB Output is correct
13 Correct 30 ms 35616 KB Output is correct
14 Correct 29 ms 35692 KB Output is correct
15 Correct 29 ms 35712 KB Output is correct
16 Correct 26 ms 35712 KB Output is correct
17 Correct 31 ms 35840 KB Output is correct
18 Correct 30 ms 36472 KB Output is correct
19 Correct 26 ms 35840 KB Output is correct
20 Correct 29 ms 36352 KB Output is correct
21 Correct 31 ms 36608 KB Output is correct
22 Correct 27 ms 36096 KB Output is correct
23 Correct 30 ms 36344 KB Output is correct
24 Correct 28 ms 36224 KB Output is correct
25 Correct 31 ms 36604 KB Output is correct
26 Correct 24 ms 35584 KB Output is correct
27 Correct 25 ms 35576 KB Output is correct
28 Correct 28 ms 35576 KB Output is correct
29 Correct 25 ms 35584 KB Output is correct
30 Correct 25 ms 35584 KB Output is correct
31 Correct 26 ms 35616 KB Output is correct
32 Correct 25 ms 35584 KB Output is correct
33 Correct 29 ms 35576 KB Output is correct
34 Correct 26 ms 35584 KB Output is correct
35 Correct 27 ms 35584 KB Output is correct
36 Correct 27 ms 35584 KB Output is correct
37 Correct 26 ms 35584 KB Output is correct
38 Correct 28 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 39 ms 39424 KB Output is correct
44 Correct 39 ms 39416 KB Output is correct
45 Correct 970 ms 47160 KB Output is correct
46 Correct 2823 ms 100472 KB Output is correct
47 Correct 1242 ms 83448 KB Output is correct
48 Correct 720 ms 36856 KB Output is correct
49 Correct 1020 ms 36648 KB Output is correct
50 Correct 717 ms 36344 KB Output is correct
51 Correct 26 ms 35576 KB Output is correct
52 Correct 25 ms 35584 KB Output is correct
53 Correct 65 ms 35584 KB Output is correct
54 Correct 41 ms 35580 KB Output is correct
55 Correct 587 ms 36420 KB Output is correct
56 Correct 1384 ms 36984 KB Output is correct
57 Correct 789 ms 36856 KB Output is correct
58 Correct 725 ms 36672 KB Output is correct
59 Correct 1274 ms 37012 KB Output is correct
60 Correct 599 ms 37880 KB Output is correct
61 Correct 1273 ms 62540 KB Output is correct
62 Execution timed out 5065 ms 57692 KB Time limit exceeded
63 Halted 0 ms 0 KB -

Subtask #7
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 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 25 ms 35584 KB Output is correct
8 Correct 26 ms 35712 KB Output is correct
9 Correct 25 ms 35584 KB Output is correct
10 Correct 24 ms 35584 KB Output is correct
11 Correct 25 ms 35584 KB Output is correct
12 Correct 35 ms 35576 KB Output is correct
13 Correct 36 ms 35584 KB Output is correct
14 Correct 35 ms 35704 KB Output is correct
15 Correct 34 ms 35584 KB Output is correct
16 Correct 34 ms 35584 KB Output is correct
17 Correct 37 ms 35584 KB Output is correct
18 Correct 35 ms 35576 KB Output is correct
19 Correct 36 ms 35584 KB Output is correct
20 Correct 37 ms 35584 KB Output is correct
21 Correct 34 ms 35584 KB Output is correct
22 Correct 34 ms 35584 KB Output is correct
23 Correct 32 ms 35584 KB Output is correct
24 Correct 31 ms 35576 KB Output is correct
25 Correct 31 ms 35584 KB Output is correct
26 Correct 32 ms 35584 KB Output is correct
27 Correct 31 ms 35584 KB Output is correct
28 Correct 32 ms 35712 KB Output is correct
29 Correct 31 ms 35584 KB Output is correct
30 Correct 31 ms 35584 KB Output is correct
31 Correct 24 ms 35584 KB Output is correct
32 Correct 24 ms 35584 KB Output is correct
33 Correct 25 ms 35584 KB Output is correct
34 Correct 24 ms 35612 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 35736 KB Output is correct
40 Correct 30 ms 35712 KB Output is correct
41 Correct 44 ms 36472 KB Output is correct
42 Correct 30 ms 36096 KB Output is correct
43 Correct 34 ms 36096 KB Output is correct
44 Correct 29 ms 35584 KB Output is correct
45 Correct 28 ms 35584 KB Output is correct
46 Correct 28 ms 35584 KB Output is correct
47 Correct 30 ms 35584 KB Output is correct
48 Correct 28 ms 35584 KB Output is correct
49 Correct 30 ms 35584 KB Output is correct
50 Correct 30 ms 35576 KB Output is correct
51 Correct 29 ms 35584 KB Output is correct
52 Correct 30 ms 36120 KB Output is correct
53 Correct 32 ms 36088 KB Output is correct
54 Correct 28 ms 35584 KB Output is correct
55 Correct 29 ms 35584 KB Output is correct
56 Correct 31 ms 35584 KB Output is correct
57 Correct 29 ms 35704 KB Output is correct
58 Correct 27 ms 35584 KB Output is correct
59 Correct 26 ms 35584 KB Output is correct
60 Correct 26 ms 35584 KB Output is correct
61 Correct 26 ms 35584 KB Output is correct
62 Correct 952 ms 39748 KB Output is correct
63 Correct 25 ms 35584 KB Output is correct
64 Correct 730 ms 73172 KB Output is correct
65 Correct 594 ms 43256 KB Output is correct
66 Correct 517 ms 39544 KB Output is correct
67 Correct 416 ms 36496 KB Output is correct
68 Correct 616 ms 47864 KB Output is correct
69 Correct 533 ms 42060 KB Output is correct
70 Correct 624 ms 48096 KB Output is correct
71 Correct 547 ms 41976 KB Output is correct
72 Correct 562 ms 47740 KB Output is correct
73 Correct 498 ms 41592 KB Output is correct
74 Correct 141 ms 35800 KB Output is correct
75 Correct 31 ms 35616 KB Output is correct
76 Correct 32 ms 35704 KB Output is correct
77 Correct 35 ms 35584 KB Output is correct
78 Correct 35 ms 35584 KB Output is correct
79 Correct 51 ms 35704 KB Output is correct
80 Correct 174 ms 36412 KB Output is correct
81 Correct 45 ms 35704 KB Output is correct
82 Correct 67 ms 35584 KB Output is correct
83 Correct 67 ms 35584 KB Output is correct
84 Correct 68 ms 35584 KB Output is correct
85 Correct 366 ms 97344 KB Output is correct
86 Correct 958 ms 239552 KB Output is correct
87 Correct 984 ms 75796 KB Output is correct
88 Correct 1032 ms 55396 KB Output is correct
89 Correct 952 ms 45560 KB Output is correct
90 Correct 895 ms 38264 KB Output is correct
91 Correct 673 ms 36344 KB Output is correct
92 Correct 740 ms 37392 KB Output is correct
93 Correct 816 ms 66680 KB Output is correct
94 Correct 726 ms 51064 KB Output is correct
95 Correct 671 ms 51192 KB Output is correct
96 Correct 568 ms 43396 KB Output is correct
97 Correct 756 ms 66552 KB Output is correct
98 Correct 656 ms 51064 KB Output is correct
99 Correct 228 ms 35968 KB Output is correct
100 Correct 37 ms 35584 KB Output is correct
101 Correct 36 ms 36352 KB Output is correct
102 Runtime error 3414 ms 1048580 KB Execution killed with signal 9
103 Halted 0 ms 0 KB -