oj.uz

Submission #541951

# Submission time Handle Problem Language Result Execution time Memory
541951 2022-03-24T21:02:31 Z farhan132 Jakarta Skyscrapers (APIO15_skyscraper) C++17
57 / 100
 1000 ms 222640 KB 
/***Farhan132***/
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,fma")
#pragma GCC optimization ("unroll-loops")
//#pragma GCC optimize("Ofast,fast-math")


#include <bits/stdc++.h>
 
 
 
using namespace std;

typedef short ll;
typedef unsigned long long ull;
typedef double dd;
typedef vector<ll> vll;
typedef pair<ll , ll> ii;
typedef vector< ii > vii;
typedef pair < pair < ll , ll > , pair < ll , ll > > cm; 
typedef tuple < int, ll, ll > tp;

#define ff first
#define ss second
#define pb push_back
#define in insert
#define f0(b) for(int i=0;i<(b);i++)
#define f00(b) for(int j=0;j<(b);j++)
#define f1(b) for(int i=1;i<=(b);i++)
#define f11(b) for(int j=1;j<=(b);j++)
#define f2(a,b) for(int i=(a);i<=(b);i++)
#define f22(a,b) for(int j=(a);j<=(b);j++)
#define sf(a) scanf("%lld",&a)
#define sff(a,b) scanf("%lld %lld", &a , &b)
#define pf(a) printf("%lld\n",a)
#define pff(a,b) printf("%lld %lld\n", a , b)
#define bug printf("**!\n")
#define mem(a , b) memset(a, b ,sizeof(a))
#define front_zero(n) __builtin_clzll(n)
#define back_zero(n) __builtin_ctzll(n)
#define total_one(n) __builtin_popcount(n)
#define clean fflush(stdout)
 
//const ll mod =  (ll) 998244353;
const ll mod =  (ll) 1e9 + 7;
const ll maxn = (ll)1e8 + 5;
const int nnn = 1048590;
const int inf = numeric_limits<int>::max()-1;
//const ll INF = numeric_limits<ll>::max()-1;
const ll INF = (ll)1e18;
 
ll dx[]={0,1,0,-1};
ll dy[]={1,0,-1,0};
ll dxx[]={0,1,0,-1,1,1,-1,-1};
ll dyy[]={1,0,-1,0,1,-1,1,-1};
 
bool USACO = 0;
 
mt19937 rng(chrono::system_clock::now().time_since_epoch().count());
 
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
 
template <typename T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

const ll N = 3e4 + 5;

vector < ll > g[N];

vector < int > dp[N];
vector < ll > car[N];

const ll M = 4505;

ll mp[N][M];

void solve(){

  ll n , m;
  cin >> n >> m;

  ll a , b;
  vector < ii > v;

  for(ll i = 0; i < m; i++){
    ll x , p; cin >> x >> p;
    g[x].pb(p);
    if(i == 0) a = x;
    if(i == 1) b = x;
    v.pb({p , x % p});
  }
  sort(v.begin(), v.end());
  v.erase(unique(v.begin(), v.end()) , v.end());


  car[a].pb(0);

  for(auto [c , j] : v){
    for(int i = j; i < n; i += c){
     car[i].pb(c);
     if(c < M) mp[i][c] = car[i].size() - 1;
    }
  }


  for(ll i = 0; i < n; i++){
    dp[i].resize(car[i].size(), -1);
  }

  queue < tp > p;

  p.push({0, a, 0});

  dp[a][0] = 0;

  while(p.size()){
    auto [cost , pos , extra] = p.front(); p.pop();
    g[pos].pb(car[pos][extra]);
    if(pos == b){
      cout << cost << '\n';
      return;
    }
    for(auto u : g[pos]){
      if(!u) continue;
      if(pos - u >= 0){
        ll c1 = pos - u;
        ll c2 = (u < M ? mp[c1][u] : lower_bound(car[c1].begin(), car[c1].end(), u) - car[c1].begin()) ;
        if(dp[c1][c2] == -1){
         dp[c1][c2] = cost + 1;
         p.push({cost + 1, c1 , c2});
        }
      }
      if(pos + u < n){
        ll c1 = pos + u;
        ll c2 = (u < M ? mp[c1][u] : lower_bound(car[c1].begin(), car[c1].end(), u) - car[c1].begin()) ;
        if(dp[c1][c2] == -1){
         dp[c1][c2] = cost + 1;
         p.push({cost + 1, c1 , c2});
        }
      }
    }
    g[pos].clear();
  }

  cout << "-1\n";


   
   return;
}
 
int main() {
    
    
    #ifdef LOCAL
        freopen("in", "r", stdin);
        freopen("out", "w", stdout);
        auto start_time = clock();
    #else 
       ios_base::sync_with_stdio(0); cin.tie(NULL); cout.tie(NULL);
    #endif

    //pre();

    ll T = 1, CT = 0; // cin >> T;

    while(T--){
        // cout << "Case #" << ++CT <<": " ;
        solve();
    }
    #ifdef LOCAL
        auto end_time = clock();
        cerr<< "Execution time: "<<(end_time - start_time)*(int)1e3/CLOCKS_PER_SEC<<" ms\n";
    #endif
 
    return 0;
}

Compilation message

skyscraper.cpp:4: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    4 | #pragma GCC optimization ("unroll-loops")
      | 
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:166:15: warning: unused variable 'CT' [-Wunused-variable]
  166 |     ll T = 1, CT = 0; // cin >> T;
      |               ^~
skyscraper.cpp: In function 'void solve()':
skyscraper.cpp:83:6: warning: 'a' may be used uninitialized in this function [-Wmaybe-uninitialized]
   83 |   ll a , b;
      |      ^
skyscraper.cpp:120:5: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized]
  120 |     if(pos == b){
      |     ^~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2388 KB Output is correct
2 Correct 2 ms 2388 KB Output is correct
3 Correct 1 ms 2388 KB Output is correct
4 Correct 1 ms 2388 KB Output is correct
5 Correct 2 ms 2388 KB Output is correct
6 Correct 2 ms 2388 KB Output is correct
7 Correct 2 ms 2388 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2388 KB Output is correct
2 Correct 1 ms 2388 KB Output is correct
3 Correct 1 ms 2388 KB Output is correct
4 Correct 2 ms 2388 KB Output is correct
5 Correct 2 ms 2388 KB Output is correct
6 Correct 2 ms 2388 KB Output is correct
7 Correct 2 ms 2388 KB Output is correct
8 Correct 2 ms 2516 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Correct 2 ms 2900 KB Output is correct
11 Correct 2 ms 2912 KB Output is correct
12 Correct 2 ms 2772 KB Output is correct
13 Correct 2 ms 2772 KB Output is correct
14 Correct 2 ms 2900 KB Output is correct
15 Correct 2 ms 2900 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2388 KB Output is correct
2 Correct 2 ms 2388 KB Output is correct
3 Correct 2 ms 2372 KB Output is correct
4 Correct 1 ms 2388 KB Output is correct
5 Correct 2 ms 2388 KB Output is correct
6 Correct 2 ms 2388 KB Output is correct
7 Correct 2 ms 2388 KB Output is correct
8 Correct 2 ms 2516 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Correct 2 ms 2900 KB Output is correct
11 Correct 2 ms 2900 KB Output is correct
12 Correct 2 ms 2772 KB Output is correct
13 Correct 3 ms 2772 KB Output is correct
14 Correct 4 ms 2900 KB Output is correct
15 Correct 2 ms 2900 KB Output is correct
16 Correct 2 ms 3412 KB Output is correct
17 Correct 4 ms 6100 KB Output is correct
18 Correct 6 ms 11604 KB Output is correct
19 Correct 6 ms 11476 KB Output is correct
20 Correct 5 ms 10580 KB Output is correct
21 Correct 3 ms 5076 KB Output is correct
22 Correct 5 ms 11604 KB Output is correct
23 Correct 6 ms 10964 KB Output is correct
24 Correct 8 ms 13900 KB Output is correct
25 Correct 7 ms 14932 KB Output is correct
26 Correct 5 ms 10836 KB Output is correct
27 Correct 6 ms 11220 KB Output is correct
28 Correct 9 ms 15184 KB Output is correct
29 Correct 10 ms 11124 KB Output is correct
30 Correct 6 ms 10784 KB Output is correct
31 Correct 8 ms 10904 KB Output is correct
32 Correct 7 ms 10836 KB Output is correct
33 Correct 15 ms 11456 KB Output is correct
34 Correct 12 ms 11476 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2388 KB Output is correct
2 Correct 2 ms 2388 KB Output is correct
3 Correct 1 ms 2388 KB Output is correct
4 Correct 2 ms 2388 KB Output is correct
5 Correct 2 ms 2388 KB Output is correct
6 Correct 2 ms 2388 KB Output is correct
7 Correct 2 ms 2388 KB Output is correct
8 Correct 2 ms 2516 KB Output is correct
9 Correct 2 ms 2588 KB Output is correct
10 Correct 2 ms 2900 KB Output is correct
11 Correct 3 ms 2900 KB Output is correct
12 Correct 2 ms 2772 KB Output is correct
13 Correct 3 ms 2772 KB Output is correct
14 Correct 3 ms 2900 KB Output is correct
15 Correct 3 ms 2900 KB Output is correct
16 Correct 2 ms 3412 KB Output is correct
17 Correct 4 ms 6100 KB Output is correct
18 Correct 6 ms 11672 KB Output is correct
19 Correct 6 ms 11476 KB Output is correct
20 Correct 5 ms 10580 KB Output is correct
21 Correct 3 ms 5076 KB Output is correct
22 Correct 6 ms 11604 KB Output is correct
23 Correct 6 ms 10964 KB Output is correct
24 Correct 8 ms 13908 KB Output is correct
25 Correct 7 ms 14932 KB Output is correct
26 Correct 5 ms 10836 KB Output is correct
27 Correct 6 ms 11212 KB Output is correct
28 Correct 9 ms 15188 KB Output is correct
29 Correct 10 ms 11104 KB Output is correct
30 Correct 6 ms 10708 KB Output is correct
31 Correct 8 ms 10968 KB Output is correct
32 Correct 7 ms 10836 KB Output is correct
33 Correct 15 ms 11548 KB Output is correct
34 Correct 12 ms 11476 KB Output is correct
35 Correct 18 ms 14676 KB Output is correct
36 Correct 6 ms 10324 KB Output is correct
37 Correct 17 ms 15192 KB Output is correct
38 Correct 23 ms 19412 KB Output is correct
39 Correct 22 ms 19268 KB Output is correct
40 Correct 20 ms 19212 KB Output is correct
41 Correct 23 ms 19248 KB Output is correct
42 Correct 12 ms 10980 KB Output is correct
43 Correct 11 ms 11348 KB Output is correct
44 Correct 12 ms 10836 KB Output is correct
45 Correct 57 ms 15084 KB Output is correct
46 Correct 43 ms 15160 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2388 KB Output is correct
2 Correct 1 ms 2388 KB Output is correct
3 Correct 2 ms 2388 KB Output is correct
4 Correct 2 ms 2388 KB Output is correct
5 Correct 2 ms 2388 KB Output is correct
6 Correct 2 ms 2388 KB Output is correct
7 Correct 2 ms 2388 KB Output is correct
8 Correct 2 ms 2516 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Correct 2 ms 2900 KB Output is correct
11 Correct 2 ms 2900 KB Output is correct
12 Correct 2 ms 2772 KB Output is correct
13 Correct 2 ms 2772 KB Output is correct
14 Correct 3 ms 2900 KB Output is correct
15 Correct 2 ms 2900 KB Output is correct
16 Correct 2 ms 3412 KB Output is correct
17 Correct 4 ms 6100 KB Output is correct
18 Correct 6 ms 11732 KB Output is correct
19 Correct 6 ms 11560 KB Output is correct
20 Correct 5 ms 10580 KB Output is correct
21 Correct 3 ms 5076 KB Output is correct
22 Correct 6 ms 11644 KB Output is correct
23 Correct 6 ms 10964 KB Output is correct
24 Correct 7 ms 13908 KB Output is correct
25 Correct 7 ms 14932 KB Output is correct
26 Correct 6 ms 10836 KB Output is correct
27 Correct 7 ms 11220 KB Output is correct
28 Correct 9 ms 15100 KB Output is correct
29 Correct 10 ms 11092 KB Output is correct
30 Correct 7 ms 10708 KB Output is correct
31 Correct 8 ms 10964 KB Output is correct
32 Correct 7 ms 10836 KB Output is correct
33 Correct 15 ms 11476 KB Output is correct
34 Correct 11 ms 11460 KB Output is correct
35 Correct 17 ms 14660 KB Output is correct
36 Correct 6 ms 10324 KB Output is correct
37 Correct 15 ms 15188 KB Output is correct
38 Correct 22 ms 19428 KB Output is correct
39 Correct 20 ms 19284 KB Output is correct
40 Correct 19 ms 19256 KB Output is correct
41 Correct 20 ms 19284 KB Output is correct
42 Correct 11 ms 10964 KB Output is correct
43 Correct 14 ms 11348 KB Output is correct
44 Correct 11 ms 10836 KB Output is correct
45 Correct 57 ms 15164 KB Output is correct
46 Correct 37 ms 15188 KB Output is correct
47 Correct 71 ms 110356 KB Output is correct
48 Correct 83 ms 169560 KB Output is correct
49 Correct 87 ms 169304 KB Output is correct
50 Correct 78 ms 170944 KB Output is correct
51 Correct 118 ms 221664 KB Output is correct
52 Correct 125 ms 222640 KB Output is correct
53 Correct 61 ms 125544 KB Output is correct
54 Correct 49 ms 125276 KB Output is correct
55 Correct 52 ms 125392 KB Output is correct
56 Correct 63 ms 125804 KB Output is correct
57 Correct 66 ms 130076 KB Output is correct
58 Correct 70 ms 126284 KB Output is correct
59 Correct 68 ms 127076 KB Output is correct
60 Correct 72 ms 133560 KB Output is correct
61 Correct 75 ms 146368 KB Output is correct
62 Correct 209 ms 220060 KB Output is correct
63 Correct 727 ms 176180 KB Output is correct
64 Correct 907 ms 169880 KB Output is correct
65 Execution timed out 1108 ms 175432 KB Time limit exceeded
66 Halted 0 ms 0 KB -