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답안 #292845

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
292845 2020-09-07T14:11:05 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);
    vector<LL> tmp;
    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){
            tmp.eb(minn);
            tmp.eb(minn);
            st=minn;
        }
        else tmp[tmp.size()-1]=minn;
        pv[minnum]++;
    }
    press(tmp);
    dp[num].resize(tmp.size());
    for(int i=0; i<tmp.size(); i++)dp[num][i]=tmp[i];
}

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:44:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |         for(int i=0; i<pv.size(); i++){
      |                      ~^~~~~~~~~~
express.cpp:47:21: 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]
   47 |             if(pv[i]==dp[nw].size())continue;
express.cpp:64:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |     for(int i=0; i<tmp.size(); i++)dp[num][i]=tmp[i];
      |                  ~^~~~~~~~~~~
express.cpp: In function 'void solve()':
express.cpp:68:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   68 |     scanf("%d %d %d %lld", &n, &m, &q, &p);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
express.cpp:71:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   71 |         scanf("%d %d %lld", &a, &b, &c);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
express.cpp:89:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   89 |         scanf("%d %lld", &a, &s);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~
express.cpp: In function 'int main()':
express.cpp:101:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  101 |     scanf("%d", &t);
      |     ~~~~~^~~~~~~~~~

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 35580 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 35576 KB Output is correct
5 Correct 32 ms 35584 KB Output is correct
6 Correct 25 ms 35584 KB Output is correct
7 Correct 25 ms 35584 KB Output is correct
8 Correct 24 ms 35584 KB Output is correct
9 Correct 24 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 36 ms 35628 KB Output is correct
13 Correct 36 ms 35704 KB Output is correct
14 Correct 37 ms 35584 KB Output is correct
15 Correct 35 ms 35584 KB Output is correct
16 Correct 33 ms 35584 KB Output is correct
17 Correct 33 ms 35584 KB Output is correct
18 Correct 36 ms 35584 KB Output is correct
19 Correct 35 ms 35584 KB Output is correct
20 Correct 35 ms 35584 KB Output is correct
21 Correct 34 ms 35584 KB Output is correct
22 Correct 33 ms 35584 KB Output is correct
23 Correct 33 ms 35584 KB Output is correct
24 Correct 32 ms 35584 KB Output is correct
25 Correct 33 ms 35584 KB Output is correct
26 Correct 31 ms 35584 KB Output is correct
27 Correct 31 ms 35576 KB Output is correct
28 Correct 32 ms 35584 KB Output is correct
29 Correct 33 ms 35584 KB Output is correct
30 Correct 33 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 35588 KB Output is correct
3 Correct 26 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 24 ms 35584 KB Output is correct
7 Correct 25 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 29 ms 35704 KB Output is correct
11 Correct 42 ms 36036 KB Output is correct
12 Correct 30 ms 36096 KB Output is correct
13 Correct 34 ms 36092 KB Output is correct
14 Correct 30 ms 35584 KB Output is correct
15 Correct 28 ms 35584 KB Output is correct
16 Correct 29 ms 35584 KB Output is correct
17 Correct 31 ms 35584 KB Output is correct
18 Correct 30 ms 35712 KB Output is correct
19 Correct 30 ms 35584 KB Output is correct
20 Correct 29 ms 35584 KB Output is correct
21 Correct 31 ms 35584 KB Output is correct
22 Correct 29 ms 35968 KB Output is correct
23 Correct 31 ms 35960 KB Output is correct
24 Correct 30 ms 35584 KB Output is correct
25 Correct 28 ms 35584 KB Output is correct
26 Correct 31 ms 35584 KB Output is correct
27 Correct 29 ms 35584 KB Output is correct
28 Correct 26 ms 35584 KB Output is correct
29 Correct 27 ms 35584 KB Output is correct
30 Correct 26 ms 35584 KB Output is correct
31 Correct 27 ms 35584 KB Output is correct
32 Correct 924 ms 38552 KB Output is correct

Subtask #3
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 35584 KB Output is correct
2 Correct 766 ms 73080 KB Output is correct
3 Correct 631 ms 43128 KB Output is correct
4 Correct 556 ms 39512 KB Output is correct
5 Correct 441 ms 36600 KB Output is correct
6 Correct 656 ms 47812 KB Output is correct
7 Correct 581 ms 42020 KB Output is correct
8 Correct 719 ms 48076 KB Output is correct
9 Correct 701 ms 41848 KB Output is correct
10 Correct 634 ms 47736 KB Output is correct
11 Correct 610 ms 41720 KB Output is correct
12 Correct 147 ms 35832 KB Output is correct
13 Correct 32 ms 35584 KB Output is correct
14 Correct 33 ms 35584 KB Output is correct
15 Correct 37 ms 35560 KB Output is correct
16 Correct 36 ms 35584 KB Output is correct
17 Correct 53 ms 35712 KB Output is correct
18 Correct 199 ms 36344 KB Output is correct
19 Correct 55 ms 35584 KB Output is correct
20 Correct 73 ms 35584 KB Output is correct
21 Correct 76 ms 35704 KB Output is correct
22 Correct 72 ms 35584 KB Output is correct
23 Correct 406 ms 90952 KB Output is correct
24 Correct 1062 ms 184076 KB Output is correct

Subtask #4
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 35584 KB Output is correct
2 Correct 766 ms 73080 KB Output is correct
3 Correct 631 ms 43128 KB Output is correct
4 Correct 556 ms 39512 KB Output is correct
5 Correct 441 ms 36600 KB Output is correct
6 Correct 656 ms 47812 KB Output is correct
7 Correct 581 ms 42020 KB Output is correct
8 Correct 719 ms 48076 KB Output is correct
9 Correct 701 ms 41848 KB Output is correct
10 Correct 634 ms 47736 KB Output is correct
11 Correct 610 ms 41720 KB Output is correct
12 Correct 147 ms 35832 KB Output is correct
13 Correct 32 ms 35584 KB Output is correct
14 Correct 33 ms 35584 KB Output is correct
15 Correct 37 ms 35560 KB Output is correct
16 Correct 36 ms 35584 KB Output is correct
17 Correct 53 ms 35712 KB Output is correct
18 Correct 199 ms 36344 KB Output is correct
19 Correct 55 ms 35584 KB Output is correct
20 Correct 73 ms 35584 KB Output is correct
21 Correct 76 ms 35704 KB Output is correct
22 Correct 72 ms 35584 KB Output is correct
23 Correct 406 ms 90952 KB Output is correct
24 Correct 1062 ms 184076 KB Output is correct
25 Correct 967 ms 75776 KB Output is correct
26 Correct 1158 ms 51828 KB Output is correct
27 Correct 1045 ms 44024 KB Output is correct
28 Correct 945 ms 37824 KB Output is correct
29 Correct 733 ms 36340 KB Output is correct
30 Correct 762 ms 37040 KB Output is correct
31 Correct 851 ms 59132 KB Output is correct
32 Correct 792 ms 47360 KB Output is correct
33 Correct 684 ms 50552 KB Output is correct
34 Correct 614 ms 43000 KB Output is correct
35 Correct 806 ms 59000 KB Output is correct
36 Correct 700 ms 47224 KB Output is correct
37 Correct 237 ms 35840 KB Output is correct
38 Correct 39 ms 35584 KB Output is correct
39 Correct 39 ms 36224 KB Output is correct
40 Runtime error 4963 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 25 ms 35616 KB Output is correct
2 Correct 24 ms 35576 KB Output is correct
3 Correct 25 ms 35584 KB Output is correct
4 Correct 29 ms 35712 KB Output is correct
5 Correct 27 ms 35712 KB Output is correct
6 Correct 26 ms 35584 KB Output is correct
7 Correct 25 ms 35584 KB Output is correct
8 Correct 32 ms 36600 KB Output is correct
9 Correct 27 ms 35584 KB Output is correct
10 Correct 27 ms 35584 KB Output is correct
11 Correct 28 ms 35584 KB Output is correct
12 Correct 28 ms 35584 KB Output is correct
13 Correct 28 ms 35584 KB Output is correct
14 Correct 28 ms 35584 KB Output is correct
15 Correct 29 ms 35584 KB Output is correct
16 Correct 28 ms 35584 KB Output is correct
17 Correct 34 ms 35712 KB Output is correct
18 Correct 29 ms 36224 KB Output is correct
19 Correct 27 ms 35712 KB Output is correct
20 Correct 29 ms 36216 KB Output is correct
21 Correct 33 ms 36344 KB Output is correct
22 Correct 30 ms 35960 KB Output is correct
23 Correct 30 ms 36088 KB Output is correct
24 Correct 29 ms 35960 KB Output is correct
25 Correct 31 ms 36472 KB Output is correct
26 Correct 25 ms 35584 KB Output is correct
27 Correct 25 ms 35584 KB Output is correct
28 Correct 26 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 25 ms 35576 KB Output is correct
32 Correct 25 ms 35584 KB Output is correct
33 Correct 25 ms 35584 KB Output is correct
34 Correct 27 ms 35584 KB Output is correct
35 Correct 26 ms 35584 KB Output is correct
36 Correct 27 ms 35584 KB Output is correct
37 Correct 28 ms 35576 KB Output is correct
38 Correct 27 ms 35712 KB Output is correct
39 Correct 28 ms 35712 KB Output is correct
40 Correct 27 ms 35576 KB Output is correct
41 Correct 28 ms 35712 KB Output is correct
42 Correct 27 ms 35584 KB Output is correct
43 Correct 40 ms 38264 KB Output is correct
44 Correct 43 ms 38392 KB Output is correct

Subtask #6
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 35616 KB Output is correct
2 Correct 24 ms 35576 KB Output is correct
3 Correct 25 ms 35584 KB Output is correct
4 Correct 29 ms 35712 KB Output is correct
5 Correct 27 ms 35712 KB Output is correct
6 Correct 26 ms 35584 KB Output is correct
7 Correct 25 ms 35584 KB Output is correct
8 Correct 32 ms 36600 KB Output is correct
9 Correct 27 ms 35584 KB Output is correct
10 Correct 27 ms 35584 KB Output is correct
11 Correct 28 ms 35584 KB Output is correct
12 Correct 28 ms 35584 KB Output is correct
13 Correct 28 ms 35584 KB Output is correct
14 Correct 28 ms 35584 KB Output is correct
15 Correct 29 ms 35584 KB Output is correct
16 Correct 28 ms 35584 KB Output is correct
17 Correct 34 ms 35712 KB Output is correct
18 Correct 29 ms 36224 KB Output is correct
19 Correct 27 ms 35712 KB Output is correct
20 Correct 29 ms 36216 KB Output is correct
21 Correct 33 ms 36344 KB Output is correct
22 Correct 30 ms 35960 KB Output is correct
23 Correct 30 ms 36088 KB Output is correct
24 Correct 29 ms 35960 KB Output is correct
25 Correct 31 ms 36472 KB Output is correct
26 Correct 25 ms 35584 KB Output is correct
27 Correct 25 ms 35584 KB Output is correct
28 Correct 26 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 25 ms 35576 KB Output is correct
32 Correct 25 ms 35584 KB Output is correct
33 Correct 25 ms 35584 KB Output is correct
34 Correct 27 ms 35584 KB Output is correct
35 Correct 26 ms 35584 KB Output is correct
36 Correct 27 ms 35584 KB Output is correct
37 Correct 28 ms 35576 KB Output is correct
38 Correct 27 ms 35712 KB Output is correct
39 Correct 28 ms 35712 KB Output is correct
40 Correct 27 ms 35576 KB Output is correct
41 Correct 28 ms 35712 KB Output is correct
42 Correct 27 ms 35584 KB Output is correct
43 Correct 40 ms 38264 KB Output is correct
44 Correct 43 ms 38392 KB Output is correct
45 Correct 1050 ms 44956 KB Output is correct
46 Correct 3163 ms 89376 KB Output is correct
47 Correct 1414 ms 79892 KB Output is correct
48 Correct 822 ms 36600 KB Output is correct
49 Correct 1119 ms 36560 KB Output is correct
50 Correct 804 ms 36112 KB Output is correct
51 Correct 28 ms 35584 KB Output is correct
52 Correct 26 ms 35584 KB Output is correct
53 Correct 67 ms 35644 KB Output is correct
54 Correct 42 ms 35560 KB Output is correct
55 Correct 594 ms 36328 KB Output is correct
56 Correct 1506 ms 36668 KB Output is correct
57 Correct 947 ms 36392 KB Output is correct
58 Correct 842 ms 36688 KB Output is correct
59 Correct 1385 ms 36756 KB Output is correct
60 Correct 642 ms 37620 KB Output is correct
61 Correct 1438 ms 54940 KB Output is correct
62 Execution timed out 5062 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 25 ms 35580 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 35576 KB Output is correct
5 Correct 32 ms 35584 KB Output is correct
6 Correct 25 ms 35584 KB Output is correct
7 Correct 25 ms 35584 KB Output is correct
8 Correct 24 ms 35584 KB Output is correct
9 Correct 24 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 36 ms 35628 KB Output is correct
13 Correct 36 ms 35704 KB Output is correct
14 Correct 37 ms 35584 KB Output is correct
15 Correct 35 ms 35584 KB Output is correct
16 Correct 33 ms 35584 KB Output is correct
17 Correct 33 ms 35584 KB Output is correct
18 Correct 36 ms 35584 KB Output is correct
19 Correct 35 ms 35584 KB Output is correct
20 Correct 35 ms 35584 KB Output is correct
21 Correct 34 ms 35584 KB Output is correct
22 Correct 33 ms 35584 KB Output is correct
23 Correct 33 ms 35584 KB Output is correct
24 Correct 32 ms 35584 KB Output is correct
25 Correct 33 ms 35584 KB Output is correct
26 Correct 31 ms 35584 KB Output is correct
27 Correct 31 ms 35576 KB Output is correct
28 Correct 32 ms 35584 KB Output is correct
29 Correct 33 ms 35584 KB Output is correct
30 Correct 33 ms 35584 KB Output is correct
31 Correct 24 ms 35584 KB Output is correct
32 Correct 24 ms 35588 KB Output is correct
33 Correct 26 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 24 ms 35584 KB Output is correct
37 Correct 25 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 29 ms 35704 KB Output is correct
41 Correct 42 ms 36036 KB Output is correct
42 Correct 30 ms 36096 KB Output is correct
43 Correct 34 ms 36092 KB Output is correct
44 Correct 30 ms 35584 KB Output is correct
45 Correct 28 ms 35584 KB Output is correct
46 Correct 29 ms 35584 KB Output is correct
47 Correct 31 ms 35584 KB Output is correct
48 Correct 30 ms 35712 KB Output is correct
49 Correct 30 ms 35584 KB Output is correct
50 Correct 29 ms 35584 KB Output is correct
51 Correct 31 ms 35584 KB Output is correct
52 Correct 29 ms 35968 KB Output is correct
53 Correct 31 ms 35960 KB Output is correct
54 Correct 30 ms 35584 KB Output is correct
55 Correct 28 ms 35584 KB Output is correct
56 Correct 31 ms 35584 KB Output is correct
57 Correct 29 ms 35584 KB Output is correct
58 Correct 26 ms 35584 KB Output is correct
59 Correct 27 ms 35584 KB Output is correct
60 Correct 26 ms 35584 KB Output is correct
61 Correct 27 ms 35584 KB Output is correct
62 Correct 924 ms 38552 KB Output is correct
63 Correct 24 ms 35584 KB Output is correct
64 Correct 766 ms 73080 KB Output is correct
65 Correct 631 ms 43128 KB Output is correct
66 Correct 556 ms 39512 KB Output is correct
67 Correct 441 ms 36600 KB Output is correct
68 Correct 656 ms 47812 KB Output is correct
69 Correct 581 ms 42020 KB Output is correct
70 Correct 719 ms 48076 KB Output is correct
71 Correct 701 ms 41848 KB Output is correct
72 Correct 634 ms 47736 KB Output is correct
73 Correct 610 ms 41720 KB Output is correct
74 Correct 147 ms 35832 KB Output is correct
75 Correct 32 ms 35584 KB Output is correct
76 Correct 33 ms 35584 KB Output is correct
77 Correct 37 ms 35560 KB Output is correct
78 Correct 36 ms 35584 KB Output is correct
79 Correct 53 ms 35712 KB Output is correct
80 Correct 199 ms 36344 KB Output is correct
81 Correct 55 ms 35584 KB Output is correct
82 Correct 73 ms 35584 KB Output is correct
83 Correct 76 ms 35704 KB Output is correct
84 Correct 72 ms 35584 KB Output is correct
85 Correct 406 ms 90952 KB Output is correct
86 Correct 1062 ms 184076 KB Output is correct
87 Correct 967 ms 75776 KB Output is correct
88 Correct 1158 ms 51828 KB Output is correct
89 Correct 1045 ms 44024 KB Output is correct
90 Correct 945 ms 37824 KB Output is correct
91 Correct 733 ms 36340 KB Output is correct
92 Correct 762 ms 37040 KB Output is correct
93 Correct 851 ms 59132 KB Output is correct
94 Correct 792 ms 47360 KB Output is correct
95 Correct 684 ms 50552 KB Output is correct
96 Correct 614 ms 43000 KB Output is correct
97 Correct 806 ms 59000 KB Output is correct
98 Correct 700 ms 47224 KB Output is correct
99 Correct 237 ms 35840 KB Output is correct
100 Correct 39 ms 35584 KB Output is correct
101 Correct 39 ms 36224 KB Output is correct
102 Runtime error 4963 ms 1048580 KB Execution killed with signal 9
103 Halted 0 ms 0 KB -