oj.uz

Submission #103993

# Submission time Handle Problem Language Result Execution time Memory
103993 2019-04-03T14:50:20 Z LittleFlowers__ Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 812 ms 3960 KB 
#include <bits/stdc++.h>
using namespace std;
#define in ({int x=0;int c=getchar(),n=0;for(;!isdigit(c);c=getchar()) n=(c=='-');for(;isdigit(c);c=getchar()) x=x*10+c-'0';n?-x:x;})
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int rnd(int l,int r){return l+rng()%(r-l+1);}
#define fasty ios_base::sync_with_stdio(false),cin.tie(nullptr);
#define task "SKYSCRAPER"
#define forinc(a,b,c) for(int a=b,_c=c;a<=_c;++a)
#define fordec(a,b,c) for(int a=b,_c=c;a>=_c;--a)
#define forv(a,b) for(auto&a:b)
#define fi first
#define se second
#define pb push_back
#define ii pair<int,int>
#define mt make_tuple
#define all(a) a.begin(),a.end()
#define reset(f, x) memset(f, x, sizeof(f))
#define bit(x,i) ((x>>(i-1))&1)
#define on(x,i) (x|(1ll<<(i-1)))
#define off(x,i) (x&~(1<<(i-1)))

const int N=30010;

int n,m;
int b[N],p[N],f[N];
priority_queue<ii,vector<ii>,greater<ii>> q;
vector<int> val[N];


main()
{
    //freopen(task".inp","r",stdin);
    //freopen(task".out","w",stdout);
    n=in,m=in;
    forinc(i,1,m) b[i]=in,p[i]=in,val[b[i]].pb(p[i]);
    reset(f,127); f[b[1]]=0;
    q.push({0,b[1]});
    while(q.size())
    {
        ii u=q.top(); q.pop();
        if(u.fi!=f[u.se]) continue;
        forv(i,val[u.se])
        {
            int c=u.fi;
            for(int j=u.se+i;j<n;j+=i)  if(f[j]>++c) q.push({f[j]=c,j});
                c=u.fi;
            for(int j=u.se-i;j>=0;j-=i) if(f[j]>++c) q.push({f[j]=c,j});
        }
    }
    cout<<(f[b[2]]<1e9 ? f[b[2]] : -1);
}

Compilation message

skyscraper.cpp:30:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1152 KB Output is correct
2 Correct 3 ms 1152 KB Output is correct
3 Correct 3 ms 1152 KB Output is correct
4 Correct 3 ms 1152 KB Output is correct
5 Correct 3 ms 1152 KB Output is correct
6 Correct 3 ms 1152 KB Output is correct
7 Correct 4 ms 1152 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1152 KB Output is correct
2 Correct 4 ms 1152 KB Output is correct
3 Correct 3 ms 1152 KB Output is correct
4 Correct 3 ms 1152 KB Output is correct
5 Correct 3 ms 1152 KB Output is correct
6 Correct 4 ms 1152 KB Output is correct
7 Correct 3 ms 1152 KB Output is correct
8 Correct 4 ms 1152 KB Output is correct
9 Correct 4 ms 1152 KB Output is correct
10 Correct 3 ms 1152 KB Output is correct
11 Correct 3 ms 1152 KB Output is correct
12 Correct 3 ms 1152 KB Output is correct
13 Correct 4 ms 1152 KB Output is correct
14 Correct 4 ms 1152 KB Output is correct
15 Correct 3 ms 1152 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1152 KB Output is correct
2 Correct 3 ms 1152 KB Output is correct
3 Correct 3 ms 1152 KB Output is correct
4 Correct 2 ms 1152 KB Output is correct
5 Correct 3 ms 1152 KB Output is correct
6 Correct 3 ms 1152 KB Output is correct
7 Correct 3 ms 1152 KB Output is correct
8 Correct 3 ms 1152 KB Output is correct
9 Correct 2 ms 1152 KB Output is correct
10 Correct 3 ms 1152 KB Output is correct
11 Correct 4 ms 1152 KB Output is correct
12 Correct 3 ms 1152 KB Output is correct
13 Correct 4 ms 1152 KB Output is correct
14 Correct 3 ms 1280 KB Output is correct
15 Correct 5 ms 1152 KB Output is correct
16 Correct 3 ms 1152 KB Output is correct
17 Correct 4 ms 1280 KB Output is correct
18 Correct 3 ms 1180 KB Output is correct
19 Correct 3 ms 1152 KB Output is correct
20 Correct 7 ms 1280 KB Output is correct
21 Correct 3 ms 1152 KB Output is correct
22 Correct 4 ms 1152 KB Output is correct
23 Correct 4 ms 1152 KB Output is correct
24 Correct 4 ms 1280 KB Output is correct
25 Correct 5 ms 1280 KB Output is correct
26 Correct 7 ms 1152 KB Output is correct
27 Correct 7 ms 1152 KB Output is correct
28 Correct 4 ms 1280 KB Output is correct
29 Correct 4 ms 1408 KB Output is correct
30 Correct 4 ms 1280 KB Output is correct
31 Correct 5 ms 1280 KB Output is correct
32 Correct 4 ms 1280 KB Output is correct
33 Correct 6 ms 1408 KB Output is correct
34 Correct 5 ms 1408 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1152 KB Output is correct
2 Correct 4 ms 1152 KB Output is correct
3 Correct 4 ms 1152 KB Output is correct
4 Correct 3 ms 1152 KB Output is correct
5 Correct 3 ms 1196 KB Output is correct
6 Correct 3 ms 1280 KB Output is correct
7 Correct 3 ms 1152 KB Output is correct
8 Correct 3 ms 1152 KB Output is correct
9 Correct 3 ms 1152 KB Output is correct
10 Correct 3 ms 1152 KB Output is correct
11 Correct 4 ms 1280 KB Output is correct
12 Correct 3 ms 1152 KB Output is correct
13 Correct 5 ms 1152 KB Output is correct
14 Correct 4 ms 1280 KB Output is correct
15 Correct 3 ms 1152 KB Output is correct
16 Correct 3 ms 1152 KB Output is correct
17 Correct 4 ms 1152 KB Output is correct
18 Correct 3 ms 1196 KB Output is correct
19 Correct 3 ms 1152 KB Output is correct
20 Correct 8 ms 1280 KB Output is correct
21 Correct 4 ms 1220 KB Output is correct
22 Correct 3 ms 1152 KB Output is correct
23 Correct 4 ms 1152 KB Output is correct
24 Correct 4 ms 1280 KB Output is correct
25 Correct 5 ms 1280 KB Output is correct
26 Correct 6 ms 1152 KB Output is correct
27 Correct 8 ms 1152 KB Output is correct
28 Correct 3 ms 1280 KB Output is correct
29 Correct 5 ms 1408 KB Output is correct
30 Correct 4 ms 1280 KB Output is correct
31 Correct 4 ms 1280 KB Output is correct
32 Correct 4 ms 1280 KB Output is correct
33 Correct 6 ms 1408 KB Output is correct
34 Correct 5 ms 1408 KB Output is correct
35 Correct 8 ms 1636 KB Output is correct
36 Correct 6 ms 1356 KB Output is correct
37 Correct 8 ms 1536 KB Output is correct
38 Correct 9 ms 1664 KB Output is correct
39 Correct 12 ms 1664 KB Output is correct
40 Correct 10 ms 1664 KB Output is correct
41 Correct 9 ms 1792 KB Output is correct
42 Correct 49 ms 1664 KB Output is correct
43 Correct 61 ms 1664 KB Output is correct
44 Correct 51 ms 1664 KB Output is correct
45 Correct 8 ms 1792 KB Output is correct
46 Correct 8 ms 1792 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1152 KB Output is correct
2 Correct 4 ms 1072 KB Output is correct
3 Correct 3 ms 1152 KB Output is correct
4 Correct 3 ms 1152 KB Output is correct
5 Correct 3 ms 1152 KB Output is correct
6 Correct 3 ms 1152 KB Output is correct
7 Correct 4 ms 1152 KB Output is correct
8 Correct 2 ms 1152 KB Output is correct
9 Correct 3 ms 1152 KB Output is correct
10 Correct 3 ms 1152 KB Output is correct
11 Correct 4 ms 1152 KB Output is correct
12 Correct 4 ms 1152 KB Output is correct
13 Correct 4 ms 1152 KB Output is correct
14 Correct 4 ms 1152 KB Output is correct
15 Correct 4 ms 1280 KB Output is correct
16 Correct 4 ms 1280 KB Output is correct
17 Correct 4 ms 1280 KB Output is correct
18 Correct 3 ms 1152 KB Output is correct
19 Correct 4 ms 1152 KB Output is correct
20 Correct 6 ms 1280 KB Output is correct
21 Correct 4 ms 1196 KB Output is correct
22 Correct 3 ms 1152 KB Output is correct
23 Correct 4 ms 1152 KB Output is correct
24 Correct 4 ms 1280 KB Output is correct
25 Correct 4 ms 1308 KB Output is correct
26 Correct 6 ms 1152 KB Output is correct
27 Correct 6 ms 1168 KB Output is correct
28 Correct 3 ms 1280 KB Output is correct
29 Correct 5 ms 1408 KB Output is correct
30 Correct 4 ms 1280 KB Output is correct
31 Correct 4 ms 1280 KB Output is correct
32 Correct 4 ms 1280 KB Output is correct
33 Correct 5 ms 1408 KB Output is correct
34 Correct 5 ms 1408 KB Output is correct
35 Correct 8 ms 1664 KB Output is correct
36 Correct 4 ms 1280 KB Output is correct
37 Correct 7 ms 1536 KB Output is correct
38 Correct 12 ms 1792 KB Output is correct
39 Correct 9 ms 1792 KB Output is correct
40 Correct 9 ms 1792 KB Output is correct
41 Correct 9 ms 1792 KB Output is correct
42 Correct 59 ms 1664 KB Output is correct
43 Correct 47 ms 1664 KB Output is correct
44 Correct 45 ms 1664 KB Output is correct
45 Correct 8 ms 1764 KB Output is correct
46 Correct 10 ms 1792 KB Output is correct
47 Correct 18 ms 2432 KB Output is correct
48 Correct 11 ms 1792 KB Output is correct
49 Correct 9 ms 1792 KB Output is correct
50 Correct 9 ms 1664 KB Output is correct
51 Correct 33 ms 3168 KB Output is correct
52 Correct 30 ms 2688 KB Output is correct
53 Correct 24 ms 2688 KB Output is correct
54 Correct 5 ms 1408 KB Output is correct
55 Correct 5 ms 1408 KB Output is correct
56 Correct 755 ms 2688 KB Output is correct
57 Correct 63 ms 3460 KB Output is correct
58 Correct 808 ms 1884 KB Output is correct
59 Correct 690 ms 1792 KB Output is correct
60 Correct 812 ms 1764 KB Output is correct
61 Correct 609 ms 1836 KB Output is correct
62 Correct 12 ms 2304 KB Output is correct
63 Correct 32 ms 2812 KB Output is correct
64 Correct 57 ms 3952 KB Output is correct
65 Correct 45 ms 3960 KB Output is correct
66 Correct 58 ms 3892 KB Output is correct
67 Correct 59 ms 3956 KB Output is correct