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Submission #244794

# Submission time Handle Problem Language Result Execution time Memory
244794 2020-07-05T02:12:17 Z uacoder123 Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 898 ms 235392 KB 
#include <bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define FOR(i,a,b) for (auto i = (a); i <= (b); ++i)
#define NFOR(i,a,b) for(auto i = (a); i >= (b); --i)
#define all(x) (x).begin(), (x).end()
#define sz(x) int(x.size())
#define mp(i,a) make_pair(i,a)
#define pb(a) push_back(a)
#define bit(x,b) (x&(1LL<<b))
 
typedef int lli;
typedef pair <lli,lli> ii;
typedef pair <lli,ii> iii;
typedef vector <lli> vi;
vector<long long int> al[5220000];
lli dis[5220000],n,rn;
map<ii,int> ma;
int minp=10000000, maxp=-1;
set<int> pset;
bool cmp(const ii& a,const ii& b)
{
  return (mp(a.F,mp(a.S%n, a.S/n)) > 
  mp(b.F,mp(b.S%n, b.S/n)));
}

lli dij(lli so,lli t)
{
  // priority_queue<ii,vector<ii>, decltype(&cmp)> s(&cmp);
  priority_queue<ii,vector<ii>, greater<ii>> s;
  // set<ii> s;
  for(lli i=0;i<5220000;++i)
    dis[i]=1000000000;
  s.push(mp(0,so));
  // s.insert(mp(0,so));
  dis[so%10000000]=0;
  while(s.size()!=0)
  {
    if(s.size()>rn*n+n)
        exit(1);
    ii v=(s.top());
    s.pop();
    // ii v=*(s.begin());
    // s.erase(s.begin());
    if(dis[v.S]!=v.F)
      continue;
    if((v.S)%n==t)
      return(v.F);
    dis[v.S]=v.F;
    if(v.S<rn*n)
    {
      if(pset.find(v.S%n)!=pset.end())
        al[v.S].pb(v.S%n+rn*n);
      if(v.S%n+v.S/n<=maxp)
        al[v.S].pb(v.S+v.S/n+1LL*10000000);
      if(v.S%n-v.S/n>=minp)
        al[v.S].pb(v.S-v.S/n+1LL*10000000);
    }
    for(lli i=0;i<al[v.S].size();++i)
    {
      if((al[v.S][i]%10000000)%n < minp or 
        (al[v.S][i]%10000000)%n > maxp) continue;
      if(al[v.S][i]/10000000+v.F<dis[al[v.S][i]%10000000])
      {
       // s.erase(mp(dis[al[v.S][i]%10000000],al[v.S][i]%10000000));
       dis[al[v.S][i]%10000000]=al[v.S][i]/10000000+v.F;
       s.push(mp(dis[al[v.S][i]%10000000],al[v.S][i]%10000000)); 
       // s.insert(mp(dis[al[v.S][i]%10000000],al[v.S][i]%10000000)); 
      }
    }
    if(v.S<rn*n)
    {
      if(pset.find(v.S%n)!=pset.end())
        al[v.S].pop_back();
      if(v.S%n+v.S/n<=maxp)
        al[v.S].pop_back();
      if(v.S%n-v.S/n>=minp)
        al[v.S].pop_back();
    }
  }
  if(dis[t]==1000000000)
    return(-1);
  return(dis[t]);
}
int main()
{
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  lli test=1;
  for(;test>0;--test)
  {
    lli m, from, to,t1=0;
    vector<ii> input;
    int g = -1;
    cin>>n>>m;
    rn=100;
    for(lli i=0;i<m;++i) {
      lli f,se;
      cin>>f>>se;
      minp = min(minp, f);
      maxp = max(maxp, f);
      pset.insert(f);
      input.pb(mp(f,se));
    }
    for(lli i=0;i<m;++i)
    {

      lli f,se;
      f = input[i].F;
      se = input[i].S;
      g = (g==-1)?se:__gcd(g, se);
      if(i==0) from = f;
      if(i==1) to = f;
      if(ma.find(mp(f, se))==ma.end()) {
        ma[mp(f, se)] = 1;
      } else continue;
      if(se<rn)
      {
        al[rn*n+f].pb((se)*n+f+0*10000000LL);
        t1+=2;
      }
      if(se>=rn)
      {
        lli p=f+se;
        while(p<=maxp)
        {
          if(pset.find(p) != pset.end())
            al[rn*n+f].pb(rn*n+p+((p-f)/se)*10000000LL);
          p+=se;
          t1++;
        }
        p=f-se;
        while(p>=minp)
        {
          if(pset.find(p) != pset.end())
            al[rn*n+f].pb(rn*n+p+((f-p)/se)*10000000LL);
          p-=se;
          t1++;
        }
      }
    }
    if(abs(to-from)%g!=0) cout << -1 << endl;
    else cout<<dij(rn*n+from,rn*n+to)<<endl;
  }
  return(0);
}

Compilation message

skyscraper.cpp: In function 'lli dij(lli, lli)':
skyscraper.cpp:40:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(s.size()>rn*n+n)
        ~~~~~~~~^~~~~~~
skyscraper.cpp:60:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(lli i=0;i<al[v.S].size();++i)
                 ~^~~~~~~~~~~~~~~
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:144:37: warning: 'to' may be used uninitialized in this function [-Wmaybe-uninitialized]
     else cout<<dij(rn*n+from,rn*n+to)<<endl;
                                     ^
skyscraper.cpp:144:37: warning: 'from' may be used uninitialized in this function [-Wmaybe-uninitialized]

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 96 ms 143356 KB Output is correct
2 Correct 86 ms 143352 KB Output is correct
3 Correct 86 ms 143352 KB Output is correct
4 Correct 88 ms 143352 KB Output is correct
5 Correct 86 ms 143352 KB Output is correct
6 Correct 86 ms 143352 KB Output is correct
7 Correct 86 ms 143352 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 143352 KB Output is correct
2 Correct 98 ms 143352 KB Output is correct
3 Correct 85 ms 143480 KB Output is correct
4 Correct 85 ms 143356 KB Output is correct
5 Correct 85 ms 143352 KB Output is correct
6 Correct 86 ms 143352 KB Output is correct
7 Correct 86 ms 143480 KB Output is correct
8 Correct 86 ms 143352 KB Output is correct
9 Correct 87 ms 143352 KB Output is correct
10 Correct 86 ms 143480 KB Output is correct
11 Correct 90 ms 143736 KB Output is correct
12 Correct 88 ms 143352 KB Output is correct
13 Correct 86 ms 143352 KB Output is correct
14 Correct 89 ms 143608 KB Output is correct
15 Correct 87 ms 143736 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 143352 KB Output is correct
2 Correct 88 ms 143352 KB Output is correct
3 Correct 87 ms 143352 KB Output is correct
4 Correct 86 ms 143352 KB Output is correct
5 Correct 85 ms 143352 KB Output is correct
6 Correct 85 ms 143352 KB Output is correct
7 Correct 86 ms 143352 KB Output is correct
8 Correct 85 ms 143352 KB Output is correct
9 Correct 84 ms 143352 KB Output is correct
10 Correct 86 ms 143480 KB Output is correct
11 Correct 88 ms 143608 KB Output is correct
12 Correct 99 ms 143352 KB Output is correct
13 Correct 85 ms 143356 KB Output is correct
14 Correct 86 ms 143608 KB Output is correct
15 Correct 89 ms 143736 KB Output is correct
16 Correct 85 ms 143480 KB Output is correct
17 Correct 92 ms 143992 KB Output is correct
18 Correct 87 ms 143480 KB Output is correct
19 Correct 87 ms 143352 KB Output is correct
20 Correct 88 ms 143736 KB Output is correct
21 Correct 88 ms 143480 KB Output is correct
22 Correct 85 ms 143480 KB Output is correct
23 Correct 87 ms 143608 KB Output is correct
24 Correct 90 ms 143868 KB Output is correct
25 Correct 99 ms 143736 KB Output is correct
26 Correct 88 ms 143736 KB Output is correct
27 Correct 88 ms 143608 KB Output is correct
28 Correct 93 ms 144376 KB Output is correct
29 Correct 110 ms 145016 KB Output is correct
30 Correct 92 ms 143864 KB Output is correct
31 Correct 98 ms 144236 KB Output is correct
32 Correct 102 ms 144120 KB Output is correct
33 Correct 114 ms 146680 KB Output is correct
34 Correct 118 ms 147320 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 143352 KB Output is correct
2 Correct 86 ms 143480 KB Output is correct
3 Correct 85 ms 143352 KB Output is correct
4 Correct 96 ms 143352 KB Output is correct
5 Correct 94 ms 143484 KB Output is correct
6 Correct 97 ms 143352 KB Output is correct
7 Correct 86 ms 143344 KB Output is correct
8 Correct 97 ms 143316 KB Output is correct
9 Correct 90 ms 143352 KB Output is correct
10 Correct 86 ms 143440 KB Output is correct
11 Correct 100 ms 143608 KB Output is correct
12 Correct 87 ms 143352 KB Output is correct
13 Correct 87 ms 143352 KB Output is correct
14 Correct 100 ms 143608 KB Output is correct
15 Correct 91 ms 143736 KB Output is correct
16 Correct 86 ms 143480 KB Output is correct
17 Correct 94 ms 143992 KB Output is correct
18 Correct 86 ms 143464 KB Output is correct
19 Correct 85 ms 143480 KB Output is correct
20 Correct 88 ms 143736 KB Output is correct
21 Correct 88 ms 143484 KB Output is correct
22 Correct 88 ms 143480 KB Output is correct
23 Correct 88 ms 143608 KB Output is correct
24 Correct 91 ms 143864 KB Output is correct
25 Correct 97 ms 143824 KB Output is correct
26 Correct 90 ms 143608 KB Output is correct
27 Correct 89 ms 143608 KB Output is correct
28 Correct 107 ms 144376 KB Output is correct
29 Correct 99 ms 145148 KB Output is correct
30 Correct 89 ms 143736 KB Output is correct
31 Correct 106 ms 144248 KB Output is correct
32 Correct 91 ms 144120 KB Output is correct
33 Correct 112 ms 146684 KB Output is correct
34 Correct 122 ms 147320 KB Output is correct
35 Correct 134 ms 147828 KB Output is correct
36 Correct 96 ms 144248 KB Output is correct
37 Correct 160 ms 149620 KB Output is correct
38 Correct 162 ms 149724 KB Output is correct
39 Correct 161 ms 149744 KB Output is correct
40 Correct 161 ms 149620 KB Output is correct
41 Correct 163 ms 149620 KB Output is correct
42 Correct 94 ms 143992 KB Output is correct
43 Correct 93 ms 143736 KB Output is correct
44 Correct 95 ms 143916 KB Output is correct
45 Correct 156 ms 151104 KB Output is correct
46 Correct 166 ms 152008 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 143356 KB Output is correct
2 Correct 85 ms 143352 KB Output is correct
3 Correct 97 ms 143352 KB Output is correct
4 Correct 88 ms 143480 KB Output is correct
5 Correct 86 ms 143352 KB Output is correct
6 Correct 101 ms 143352 KB Output is correct
7 Correct 94 ms 143480 KB Output is correct
8 Correct 87 ms 143352 KB Output is correct
9 Correct 87 ms 143352 KB Output is correct
10 Correct 86 ms 143480 KB Output is correct
11 Correct 88 ms 143736 KB Output is correct
12 Correct 95 ms 143480 KB Output is correct
13 Correct 86 ms 143352 KB Output is correct
14 Correct 91 ms 143608 KB Output is correct
15 Correct 89 ms 143736 KB Output is correct
16 Correct 86 ms 143352 KB Output is correct
17 Correct 93 ms 143992 KB Output is correct
18 Correct 86 ms 143480 KB Output is correct
19 Correct 86 ms 143352 KB Output is correct
20 Correct 88 ms 143736 KB Output is correct
21 Correct 88 ms 143480 KB Output is correct
22 Correct 88 ms 143480 KB Output is correct
23 Correct 98 ms 143608 KB Output is correct
24 Correct 90 ms 143864 KB Output is correct
25 Correct 87 ms 143736 KB Output is correct
26 Correct 88 ms 143612 KB Output is correct
27 Correct 102 ms 143608 KB Output is correct
28 Correct 96 ms 144376 KB Output is correct
29 Correct 112 ms 145016 KB Output is correct
30 Correct 101 ms 143736 KB Output is correct
31 Correct 101 ms 144252 KB Output is correct
32 Correct 93 ms 144120 KB Output is correct
33 Correct 128 ms 146680 KB Output is correct
34 Correct 119 ms 147320 KB Output is correct
35 Correct 152 ms 147868 KB Output is correct
36 Correct 108 ms 144248 KB Output is correct
37 Correct 157 ms 149748 KB Output is correct
38 Correct 158 ms 149620 KB Output is correct
39 Correct 165 ms 149748 KB Output is correct
40 Correct 158 ms 149744 KB Output is correct
41 Correct 161 ms 149624 KB Output is correct
42 Correct 102 ms 143860 KB Output is correct
43 Correct 106 ms 143864 KB Output is correct
44 Correct 94 ms 144196 KB Output is correct
45 Correct 154 ms 150912 KB Output is correct
46 Correct 175 ms 151936 KB Output is correct
47 Correct 408 ms 164940 KB Output is correct
48 Correct 149 ms 146420 KB Output is correct
49 Correct 145 ms 146164 KB Output is correct
50 Correct 113 ms 145272 KB Output is correct
51 Correct 241 ms 153588 KB Output is correct
52 Correct 252 ms 154616 KB Output is correct
53 Correct 133 ms 148724 KB Output is correct
54 Correct 86 ms 123000 KB Output is correct
55 Correct 101 ms 144120 KB Output is correct
56 Correct 129 ms 149236 KB Output is correct
57 Correct 272 ms 157816 KB Output is correct
58 Correct 113 ms 145656 KB Output is correct
59 Correct 120 ms 146684 KB Output is correct
60 Correct 131 ms 146820 KB Output is correct
61 Correct 113 ms 146564 KB Output is correct
62 Correct 269 ms 160760 KB Output is correct
63 Correct 134 ms 146568 KB Output is correct
64 Correct 126 ms 146308 KB Output is correct
65 Correct 139 ms 146432 KB Output is correct
66 Correct 813 ms 228240 KB Output is correct
67 Correct 898 ms 235392 KB Output is correct