oj.uz

Submission #74723

# Submission time Handle Problem Language Result Execution time Memory
74723 2018-09-07T03:06:29 Z goodbaton Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 109 ms 40520 KB 
#include <cstdio>
#include <cstdlib>
#include <vector>
#include <set>
#include <algorithm>
#include <map>
#include <queue>
#include <stack>
#include <cmath>

using namespace std;

typedef long long ll;
#define SIZE 30000
#define INF 2000000000


int N,M,B[SIZE],P[SIZE],s,g,cost[SIZE];
vector<int> way[SIZE];
bool kaku[SIZE];
bool wayn[SIZE][1001];

int main(){
    
    scanf("%d%d",&N,&M);
    
    for(int i=0;i<N;i++){
        cost[i]=-INF;
    }
    
    for(int i=0;i<M;i++){
        scanf("%d%d",&B[i],&P[i]);
        
        if(i==0){
            s = B[i];
        }
        
        if(i==1){
            g = B[i];
        }
        
        if(P[i]<=1000)
            if(wayn[B[i]][P[i]])
                continue;
        
        way[B[i]].push_back(i);
        
        if(P[i]<=1000)
            wayn[B[i]][P[i]]=true;
    }
    
    priority_queue<pair<int,int> > pq;
    
    pq.push(make_pair(0,s));
    
    while(!pq.empty()){
        pair<int,int> p=pq.top();
        pq.pop();
        
        int now = p.second;
        
        if(now==g){
            printf("%d\n",-p.first);
            return 0;
        }
        
        if(kaku[now]) continue;
        kaku[now]=true;
        
        for(int i=way[now].size()-1;i>=0;i--){
            int doge = way[now][i];
            
            for(int j=1;B[doge]+j*P[doge]<N;j++){
                
                if(cost[now+j*P[doge]]<p.first-j){
                    pq.push(make_pair(p.first-j,now+j*P[doge]));
                    cost[now+j*P[doge]]=p.first-j;
                }
                
                if(P[doge]<=1000)
                    if(wayn[now+j*P[doge]][P[doge]]) break;
            }
            
            for(int j=1;B[doge]-j*P[doge]>=0;j++){
                if(cost[now-j*P[doge]]<p.first-j){
                    pq.push(make_pair(p.first-j,now-j*P[doge]));
                    cost[now-j*P[doge]]=p.first-j;
                }
                
                if(P[doge]<=1000)
                    if(wayn[now-j*P[doge]][P[doge]]) break;
            }
        }
    }
    
    
    printf("-1\n");

    return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:25:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&N,&M);
     ~~~~~^~~~~~~~~~~~~~
skyscraper.cpp:32:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d",&B[i],&P[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1016 KB Output is correct
2 Correct 2 ms 1144 KB Output is correct
3 Correct 2 ms 1256 KB Output is correct
4 Correct 2 ms 1256 KB Output is correct
5 Correct 2 ms 1256 KB Output is correct
6 Correct 2 ms 1256 KB Output is correct
7 Correct 2 ms 1256 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1276 KB Output is correct
2 Correct 2 ms 1280 KB Output is correct
3 Correct 2 ms 1288 KB Output is correct
4 Correct 2 ms 1292 KB Output is correct
5 Correct 3 ms 1296 KB Output is correct
6 Correct 2 ms 1300 KB Output is correct
7 Correct 2 ms 1304 KB Output is correct
8 Correct 3 ms 1364 KB Output is correct
9 Correct 2 ms 1364 KB Output is correct
10 Correct 3 ms 1444 KB Output is correct
11 Correct 4 ms 1492 KB Output is correct
12 Correct 3 ms 1504 KB Output is correct
13 Correct 3 ms 1552 KB Output is correct
14 Correct 3 ms 1580 KB Output is correct
15 Correct 3 ms 1580 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1580 KB Output is correct
2 Correct 2 ms 1580 KB Output is correct
3 Correct 3 ms 1580 KB Output is correct
4 Correct 3 ms 1580 KB Output is correct
5 Correct 3 ms 1580 KB Output is correct
6 Correct 3 ms 1580 KB Output is correct
7 Correct 2 ms 1580 KB Output is correct
8 Correct 3 ms 1692 KB Output is correct
9 Correct 2 ms 1692 KB Output is correct
10 Correct 3 ms 1716 KB Output is correct
11 Correct 3 ms 1720 KB Output is correct
12 Correct 3 ms 1720 KB Output is correct
13 Correct 3 ms 1744 KB Output is correct
14 Correct 3 ms 1756 KB Output is correct
15 Correct 3 ms 1768 KB Output is correct
16 Correct 3 ms 1840 KB Output is correct
17 Correct 5 ms 2432 KB Output is correct
18 Correct 4 ms 2960 KB Output is correct
19 Correct 4 ms 2960 KB Output is correct
20 Correct 5 ms 3700 KB Output is correct
21 Correct 4 ms 3700 KB Output is correct
22 Correct 4 ms 3700 KB Output is correct
23 Correct 5 ms 3700 KB Output is correct
24 Correct 6 ms 3700 KB Output is correct
25 Correct 5 ms 3700 KB Output is correct
26 Correct 4 ms 3700 KB Output is correct
27 Correct 4 ms 3700 KB Output is correct
28 Correct 5 ms 3700 KB Output is correct
29 Correct 4 ms 3700 KB Output is correct
30 Correct 4 ms 3700 KB Output is correct
31 Correct 5 ms 3700 KB Output is correct
32 Correct 4 ms 3700 KB Output is correct
33 Correct 5 ms 3700 KB Output is correct
34 Correct 4 ms 3700 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3700 KB Output is correct
2 Correct 3 ms 3700 KB Output is correct
3 Correct 2 ms 3700 KB Output is correct
4 Correct 2 ms 3700 KB Output is correct
5 Correct 3 ms 3700 KB Output is correct
6 Correct 3 ms 3700 KB Output is correct
7 Correct 2 ms 3700 KB Output is correct
8 Correct 3 ms 3700 KB Output is correct
9 Correct 3 ms 3700 KB Output is correct
10 Correct 3 ms 3700 KB Output is correct
11 Correct 3 ms 3700 KB Output is correct
12 Correct 3 ms 3700 KB Output is correct
13 Correct 3 ms 3700 KB Output is correct
14 Correct 3 ms 3700 KB Output is correct
15 Correct 3 ms 3700 KB Output is correct
16 Correct 3 ms 3700 KB Output is correct
17 Correct 4 ms 3700 KB Output is correct
18 Correct 4 ms 3700 KB Output is correct
19 Correct 4 ms 3700 KB Output is correct
20 Correct 5 ms 4128 KB Output is correct
21 Correct 3 ms 4128 KB Output is correct
22 Correct 4 ms 4128 KB Output is correct
23 Correct 5 ms 4128 KB Output is correct
24 Correct 6 ms 4128 KB Output is correct
25 Correct 5 ms 4128 KB Output is correct
26 Correct 4 ms 4128 KB Output is correct
27 Correct 5 ms 4128 KB Output is correct
28 Correct 5 ms 4128 KB Output is correct
29 Correct 5 ms 4128 KB Output is correct
30 Correct 4 ms 4128 KB Output is correct
31 Correct 4 ms 4128 KB Output is correct
32 Correct 18 ms 4128 KB Output is correct
33 Correct 5 ms 4128 KB Output is correct
34 Correct 4 ms 4128 KB Output is correct
35 Correct 13 ms 4312 KB Output is correct
36 Correct 5 ms 4312 KB Output is correct
37 Correct 12 ms 4956 KB Output is correct
38 Correct 17 ms 5500 KB Output is correct
39 Correct 14 ms 5716 KB Output is correct
40 Correct 14 ms 6028 KB Output is correct
41 Correct 18 ms 6292 KB Output is correct
42 Correct 9 ms 6292 KB Output is correct
43 Correct 9 ms 6292 KB Output is correct
44 Correct 11 ms 6588 KB Output is correct
45 Correct 19 ms 6588 KB Output is correct
46 Correct 14 ms 6588 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6588 KB Output is correct
2 Correct 2 ms 6588 KB Output is correct
3 Correct 2 ms 6588 KB Output is correct
4 Correct 2 ms 6588 KB Output is correct
5 Correct 2 ms 6588 KB Output is correct
6 Correct 2 ms 6588 KB Output is correct
7 Correct 2 ms 6588 KB Output is correct
8 Correct 3 ms 6588 KB Output is correct
9 Correct 2 ms 6588 KB Output is correct
10 Correct 3 ms 6588 KB Output is correct
11 Correct 4 ms 6588 KB Output is correct
12 Correct 3 ms 6588 KB Output is correct
13 Correct 3 ms 6588 KB Output is correct
14 Correct 3 ms 6588 KB Output is correct
15 Correct 3 ms 6588 KB Output is correct
16 Correct 3 ms 6588 KB Output is correct
17 Correct 5 ms 6588 KB Output is correct
18 Correct 4 ms 6588 KB Output is correct
19 Correct 4 ms 6588 KB Output is correct
20 Correct 4 ms 7040 KB Output is correct
21 Correct 3 ms 7040 KB Output is correct
22 Correct 4 ms 7040 KB Output is correct
23 Correct 5 ms 7040 KB Output is correct
24 Correct 6 ms 7040 KB Output is correct
25 Correct 5 ms 7040 KB Output is correct
26 Correct 4 ms 7040 KB Output is correct
27 Correct 4 ms 7040 KB Output is correct
28 Correct 5 ms 7040 KB Output is correct
29 Correct 5 ms 7040 KB Output is correct
30 Correct 4 ms 7040 KB Output is correct
31 Correct 4 ms 7040 KB Output is correct
32 Correct 4 ms 7040 KB Output is correct
33 Correct 5 ms 7040 KB Output is correct
34 Correct 4 ms 7040 KB Output is correct
35 Correct 14 ms 7252 KB Output is correct
36 Correct 5 ms 7252 KB Output is correct
37 Correct 14 ms 8104 KB Output is correct
38 Correct 18 ms 8460 KB Output is correct
39 Correct 15 ms 8676 KB Output is correct
40 Correct 16 ms 8988 KB Output is correct
41 Correct 17 ms 9288 KB Output is correct
42 Correct 9 ms 9288 KB Output is correct
43 Correct 9 ms 9288 KB Output is correct
44 Correct 11 ms 9580 KB Output is correct
45 Correct 13 ms 9580 KB Output is correct
46 Correct 13 ms 9580 KB Output is correct
47 Correct 32 ms 20708 KB Output is correct
48 Correct 17 ms 20708 KB Output is correct
49 Correct 16 ms 20708 KB Output is correct
50 Correct 11 ms 20708 KB Output is correct
51 Correct 38 ms 20708 KB Output is correct
52 Correct 40 ms 20708 KB Output is correct
53 Correct 22 ms 20708 KB Output is correct
54 Correct 12 ms 20708 KB Output is correct
55 Correct 12 ms 20708 KB Output is correct
56 Correct 55 ms 40520 KB Output is correct
57 Correct 19 ms 40520 KB Output is correct
58 Correct 18 ms 40520 KB Output is correct
59 Correct 19 ms 40520 KB Output is correct
60 Correct 20 ms 40520 KB Output is correct
61 Correct 23 ms 40520 KB Output is correct
62 Correct 30 ms 40520 KB Output is correct
63 Correct 65 ms 40520 KB Output is correct
64 Correct 58 ms 40520 KB Output is correct
65 Correct 75 ms 40520 KB Output is correct
66 Correct 109 ms 40520 KB Output is correct
67 Correct 102 ms 40520 KB Output is correct