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Submission #292905

# Submission time Handle Problem Language Result Execution time Memory
292905 2020-09-07T14:42:34 Z 문홍윤(#5817) Express 20/19 (ROI19_express) C++17
67 / 100
 5000 ms 182380 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=5e15;

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

# Verdict Execution time Memory Grader output
1 Correct 23 ms 35584 KB Output is correct
2 Correct 23 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 31 ms 35576 KB Output is correct
6 Correct 23 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 23 ms 35584 KB Output is correct
10 Correct 23 ms 35584 KB Output is correct
11 Correct 22 ms 35584 KB Output is correct
12 Correct 33 ms 35584 KB Output is correct
13 Correct 35 ms 35584 KB Output is correct
14 Correct 36 ms 35628 KB Output is correct
15 Correct 34 ms 35584 KB Output is correct
16 Correct 33 ms 35616 KB Output is correct
17 Correct 34 ms 35584 KB Output is correct
18 Correct 35 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 35 ms 35584 KB Output is correct
22 Correct 34 ms 35584 KB Output is correct
23 Correct 33 ms 35584 KB Output is correct
24 Correct 35 ms 35576 KB Output is correct
25 Correct 32 ms 35584 KB Output is correct
26 Correct 31 ms 35584 KB Output is correct
27 Correct 31 ms 35712 KB Output is correct
28 Correct 32 ms 35584 KB Output is correct
29 Correct 33 ms 35584 KB Output is correct
30 Correct 32 ms 35584 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 35584 KB Output is correct
2 Correct 25 ms 35584 KB Output is correct
3 Correct 24 ms 35584 KB Output is correct
4 Correct 25 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 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 30 ms 35704 KB Output is correct
11 Correct 42 ms 36088 KB Output is correct
12 Correct 32 ms 35968 KB Output is correct
13 Correct 34 ms 36096 KB Output is correct
14 Correct 29 ms 35584 KB Output is correct
15 Correct 29 ms 35584 KB Output is correct
16 Correct 29 ms 35576 KB Output is correct
17 Correct 31 ms 35584 KB Output is correct
18 Correct 29 ms 35584 KB Output is correct
19 Correct 29 ms 35584 KB Output is correct
20 Correct 29 ms 35584 KB Output is correct
21 Correct 30 ms 35576 KB Output is correct
22 Correct 30 ms 35968 KB Output is correct
23 Correct 31 ms 35968 KB Output is correct
24 Correct 28 ms 35584 KB Output is correct
25 Correct 29 ms 35712 KB Output is correct
26 Correct 31 ms 35584 KB Output is correct
27 Correct 30 ms 35584 KB Output is correct
28 Correct 26 ms 35576 KB Output is correct
29 Correct 28 ms 35584 KB Output is correct
30 Correct 27 ms 35584 KB Output is correct
31 Correct 28 ms 35584 KB Output is correct
32 Correct 920 ms 38812 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 35584 KB Output is correct
2 Correct 684 ms 67772 KB Output is correct
3 Correct 596 ms 43208 KB Output is correct
4 Correct 497 ms 39416 KB Output is correct
5 Correct 407 ms 36500 KB Output is correct
6 Correct 624 ms 47736 KB Output is correct
7 Correct 542 ms 42104 KB Output is correct
8 Correct 629 ms 48120 KB Output is correct
9 Correct 628 ms 41848 KB Output is correct
10 Correct 608 ms 47792 KB Output is correct
11 Correct 521 ms 41592 KB Output is correct
12 Correct 143 ms 35712 KB Output is correct
13 Correct 31 ms 35584 KB Output is correct
14 Correct 32 ms 35584 KB Output is correct
15 Correct 36 ms 35576 KB Output is correct
16 Correct 36 ms 35584 KB Output is correct
17 Correct 52 ms 35712 KB Output is correct
18 Correct 179 ms 36344 KB Output is correct
19 Correct 46 ms 35584 KB Output is correct
20 Correct 71 ms 35704 KB Output is correct
21 Correct 69 ms 35584 KB Output is correct
22 Correct 70 ms 35648 KB Output is correct
23 Correct 397 ms 91128 KB Output is correct
24 Correct 1002 ms 182380 KB Output is correct

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 35584 KB Output is correct
2 Correct 684 ms 67772 KB Output is correct
3 Correct 596 ms 43208 KB Output is correct
4 Correct 497 ms 39416 KB Output is correct
5 Correct 407 ms 36500 KB Output is correct
6 Correct 624 ms 47736 KB Output is correct
7 Correct 542 ms 42104 KB Output is correct
8 Correct 629 ms 48120 KB Output is correct
9 Correct 628 ms 41848 KB Output is correct
10 Correct 608 ms 47792 KB Output is correct
11 Correct 521 ms 41592 KB Output is correct
12 Correct 143 ms 35712 KB Output is correct
13 Correct 31 ms 35584 KB Output is correct
14 Correct 32 ms 35584 KB Output is correct
15 Correct 36 ms 35576 KB Output is correct
16 Correct 36 ms 35584 KB Output is correct
17 Correct 52 ms 35712 KB Output is correct
18 Correct 179 ms 36344 KB Output is correct
19 Correct 46 ms 35584 KB Output is correct
20 Correct 71 ms 35704 KB Output is correct
21 Correct 69 ms 35584 KB Output is correct
22 Correct 70 ms 35648 KB Output is correct
23 Correct 397 ms 91128 KB Output is correct
24 Correct 1002 ms 182380 KB Output is correct
25 Incorrect 928 ms 70324 KB Output isn't correct
26 Halted 0 ms 0 KB -

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 35584 KB Output is correct
2 Correct 25 ms 35584 KB Output is correct
3 Correct 26 ms 35584 KB Output is correct
4 Correct 30 ms 35712 KB Output is correct
5 Correct 25 ms 35584 KB Output is correct
6 Correct 26 ms 35576 KB Output is correct
7 Correct 26 ms 35584 KB Output is correct
8 Correct 29 ms 36600 KB Output is correct
9 Correct 28 ms 35584 KB Output is correct
10 Correct 26 ms 35576 KB Output is correct
11 Correct 28 ms 35584 KB Output is correct
12 Correct 27 ms 35584 KB Output is correct
13 Correct 27 ms 35584 KB Output is correct
14 Correct 28 ms 35584 KB Output is correct
15 Correct 28 ms 35712 KB Output is correct
16 Correct 27 ms 35584 KB Output is correct
17 Correct 30 ms 35712 KB Output is correct
18 Correct 31 ms 36216 KB Output is correct
19 Correct 26 ms 35704 KB Output is correct
20 Correct 30 ms 36224 KB Output is correct
21 Correct 32 ms 36352 KB Output is correct
22 Correct 28 ms 35960 KB Output is correct
23 Correct 30 ms 36096 KB Output is correct
24 Correct 29 ms 35960 KB Output is correct
25 Correct 31 ms 36476 KB Output is correct
26 Correct 25 ms 35584 KB Output is correct
27 Correct 25 ms 35584 KB Output is correct
28 Correct 25 ms 35584 KB Output is correct
29 Correct 25 ms 35576 KB Output is correct
30 Correct 25 ms 35584 KB Output is correct
31 Correct 25 ms 35584 KB Output is correct
32 Correct 26 ms 35584 KB Output is correct
33 Correct 25 ms 35576 KB Output is correct
34 Correct 27 ms 35584 KB Output is correct
35 Correct 27 ms 35576 KB Output is correct
36 Correct 28 ms 35584 KB Output is correct
37 Correct 27 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 35576 KB Output is correct
42 Correct 30 ms 35584 KB Output is correct
43 Correct 40 ms 38264 KB Output is correct
44 Correct 40 ms 38568 KB Output is correct

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 35584 KB Output is correct
2 Correct 25 ms 35584 KB Output is correct
3 Correct 26 ms 35584 KB Output is correct
4 Correct 30 ms 35712 KB Output is correct
5 Correct 25 ms 35584 KB Output is correct
6 Correct 26 ms 35576 KB Output is correct
7 Correct 26 ms 35584 KB Output is correct
8 Correct 29 ms 36600 KB Output is correct
9 Correct 28 ms 35584 KB Output is correct
10 Correct 26 ms 35576 KB Output is correct
11 Correct 28 ms 35584 KB Output is correct
12 Correct 27 ms 35584 KB Output is correct
13 Correct 27 ms 35584 KB Output is correct
14 Correct 28 ms 35584 KB Output is correct
15 Correct 28 ms 35712 KB Output is correct
16 Correct 27 ms 35584 KB Output is correct
17 Correct 30 ms 35712 KB Output is correct
18 Correct 31 ms 36216 KB Output is correct
19 Correct 26 ms 35704 KB Output is correct
20 Correct 30 ms 36224 KB Output is correct
21 Correct 32 ms 36352 KB Output is correct
22 Correct 28 ms 35960 KB Output is correct
23 Correct 30 ms 36096 KB Output is correct
24 Correct 29 ms 35960 KB Output is correct
25 Correct 31 ms 36476 KB Output is correct
26 Correct 25 ms 35584 KB Output is correct
27 Correct 25 ms 35584 KB Output is correct
28 Correct 25 ms 35584 KB Output is correct
29 Correct 25 ms 35576 KB Output is correct
30 Correct 25 ms 35584 KB Output is correct
31 Correct 25 ms 35584 KB Output is correct
32 Correct 26 ms 35584 KB Output is correct
33 Correct 25 ms 35576 KB Output is correct
34 Correct 27 ms 35584 KB Output is correct
35 Correct 27 ms 35576 KB Output is correct
36 Correct 28 ms 35584 KB Output is correct
37 Correct 27 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 35576 KB Output is correct
42 Correct 30 ms 35584 KB Output is correct
43 Correct 40 ms 38264 KB Output is correct
44 Correct 40 ms 38568 KB Output is correct
45 Correct 1006 ms 45048 KB Output is correct
46 Correct 2780 ms 89464 KB Output is correct
47 Correct 1294 ms 80032 KB Output is correct
48 Correct 738 ms 36856 KB Output is correct
49 Correct 1059 ms 36840 KB Output is correct
50 Correct 728 ms 36216 KB Output is correct
51 Correct 25 ms 35584 KB Output is correct
52 Correct 25 ms 35576 KB Output is correct
53 Correct 63 ms 35584 KB Output is correct
54 Correct 41 ms 35584 KB Output is correct
55 Correct 609 ms 36356 KB Output is correct
56 Correct 1474 ms 36944 KB Output is correct
57 Correct 850 ms 36472 KB Output is correct
58 Correct 723 ms 36864 KB Output is correct
59 Correct 1362 ms 36584 KB Output is correct
60 Correct 612 ms 37812 KB Output is correct
61 Correct 1381 ms 55076 KB Output is correct
62 Execution timed out 5044 ms 57720 KB Time limit exceeded
63 Halted 0 ms 0 KB -

Subtask #7
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 35584 KB Output is correct
2 Correct 23 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 31 ms 35576 KB Output is correct
6 Correct 23 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 23 ms 35584 KB Output is correct
10 Correct 23 ms 35584 KB Output is correct
11 Correct 22 ms 35584 KB Output is correct
12 Correct 33 ms 35584 KB Output is correct
13 Correct 35 ms 35584 KB Output is correct
14 Correct 36 ms 35628 KB Output is correct
15 Correct 34 ms 35584 KB Output is correct
16 Correct 33 ms 35616 KB Output is correct
17 Correct 34 ms 35584 KB Output is correct
18 Correct 35 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 35 ms 35584 KB Output is correct
22 Correct 34 ms 35584 KB Output is correct
23 Correct 33 ms 35584 KB Output is correct
24 Correct 35 ms 35576 KB Output is correct
25 Correct 32 ms 35584 KB Output is correct
26 Correct 31 ms 35584 KB Output is correct
27 Correct 31 ms 35712 KB Output is correct
28 Correct 32 ms 35584 KB Output is correct
29 Correct 33 ms 35584 KB Output is correct
30 Correct 32 ms 35584 KB Output is correct
31 Correct 24 ms 35584 KB Output is correct
32 Correct 25 ms 35584 KB Output is correct
33 Correct 24 ms 35584 KB Output is correct
34 Correct 25 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 25 ms 35584 KB Output is correct
38 Correct 24 ms 35584 KB Output is correct
39 Correct 24 ms 35584 KB Output is correct
40 Correct 30 ms 35704 KB Output is correct
41 Correct 42 ms 36088 KB Output is correct
42 Correct 32 ms 35968 KB Output is correct
43 Correct 34 ms 36096 KB Output is correct
44 Correct 29 ms 35584 KB Output is correct
45 Correct 29 ms 35584 KB Output is correct
46 Correct 29 ms 35576 KB Output is correct
47 Correct 31 ms 35584 KB Output is correct
48 Correct 29 ms 35584 KB Output is correct
49 Correct 29 ms 35584 KB Output is correct
50 Correct 29 ms 35584 KB Output is correct
51 Correct 30 ms 35576 KB Output is correct
52 Correct 30 ms 35968 KB Output is correct
53 Correct 31 ms 35968 KB Output is correct
54 Correct 28 ms 35584 KB Output is correct
55 Correct 29 ms 35712 KB Output is correct
56 Correct 31 ms 35584 KB Output is correct
57 Correct 30 ms 35584 KB Output is correct
58 Correct 26 ms 35576 KB Output is correct
59 Correct 28 ms 35584 KB Output is correct
60 Correct 27 ms 35584 KB Output is correct
61 Correct 28 ms 35584 KB Output is correct
62 Correct 920 ms 38812 KB Output is correct
63 Correct 24 ms 35584 KB Output is correct
64 Correct 684 ms 67772 KB Output is correct
65 Correct 596 ms 43208 KB Output is correct
66 Correct 497 ms 39416 KB Output is correct
67 Correct 407 ms 36500 KB Output is correct
68 Correct 624 ms 47736 KB Output is correct
69 Correct 542 ms 42104 KB Output is correct
70 Correct 629 ms 48120 KB Output is correct
71 Correct 628 ms 41848 KB Output is correct
72 Correct 608 ms 47792 KB Output is correct
73 Correct 521 ms 41592 KB Output is correct
74 Correct 143 ms 35712 KB Output is correct
75 Correct 31 ms 35584 KB Output is correct
76 Correct 32 ms 35584 KB Output is correct
77 Correct 36 ms 35576 KB Output is correct
78 Correct 36 ms 35584 KB Output is correct
79 Correct 52 ms 35712 KB Output is correct
80 Correct 179 ms 36344 KB Output is correct
81 Correct 46 ms 35584 KB Output is correct
82 Correct 71 ms 35704 KB Output is correct
83 Correct 69 ms 35584 KB Output is correct
84 Correct 70 ms 35648 KB Output is correct
85 Correct 397 ms 91128 KB Output is correct
86 Correct 1002 ms 182380 KB Output is correct
87 Incorrect 928 ms 70324 KB Output isn't correct
88 Halted 0 ms 0 KB -