oj.uz

답안 #541935

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
541935 2022-03-24T20:42:03 Z farhan132 Jakarta Skyscrapers (APIO15_skyscraper) C++17
57 / 100
 335 ms 9528 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 = 15;

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(ll 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].pop_back();
  }

  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: 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:120:5: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized]
  120 |     if(pos == b){
      |     ^~
skyscraper.cpp:83:6: warning: 'a' may be used uninitialized in this function [-Wmaybe-uninitialized]
   83 |   ll a , b;
      |      ^

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 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 1 ms 2388 KB Output is correct
6 Correct 3 ms 2388 KB Output is correct
7 Correct 1 ms 2388 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 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 1 ms 2388 KB Output is correct
6 Correct 1 ms 2388 KB Output is correct
7 Correct 2 ms 2388 KB Output is correct
8 Correct 2 ms 2388 KB Output is correct
9 Correct 1 ms 2388 KB Output is correct
10 Correct 2 ms 2388 KB Output is correct
11 Correct 2 ms 2516 KB Output is correct
12 Correct 2 ms 2388 KB Output is correct
13 Correct 2 ms 2388 KB Output is correct
14 Correct 7 ms 2516 KB Output is correct
15 Correct 3 ms 2516 KB Output is correct

Subtask #3
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2388 KB Output is correct
2 Correct 1 ms 2388 KB Output is correct
3 Correct 2 ms 2400 KB Output is correct
4 Correct 1 ms 2388 KB Output is correct
5 Correct 1 ms 2388 KB Output is correct
6 Correct 2 ms 2388 KB Output is correct
7 Correct 1 ms 2388 KB Output is correct
8 Correct 2 ms 2388 KB Output is correct
9 Correct 2 ms 2388 KB Output is correct
10 Correct 1 ms 2388 KB Output is correct
11 Correct 2 ms 2516 KB Output is correct
12 Correct 2 ms 2388 KB Output is correct
13 Correct 2 ms 2388 KB Output is correct
14 Correct 4 ms 2516 KB Output is correct
15 Correct 2 ms 2516 KB Output is correct
16 Correct 2 ms 2388 KB Output is correct
17 Correct 4 ms 2644 KB Output is correct
18 Correct 2 ms 2516 KB Output is correct
19 Correct 2 ms 2516 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2388 KB Output is correct
22 Correct 2 ms 2516 KB Output is correct
23 Correct 2 ms 2644 KB Output is correct
24 Correct 3 ms 2644 KB Output is correct
25 Correct 4 ms 2620 KB Output is correct
26 Correct 2 ms 2644 KB Output is correct
27 Correct 3 ms 2644 KB Output is correct
28 Correct 5 ms 2772 KB Output is correct
29 Correct 9 ms 2956 KB Output is correct
30 Correct 4 ms 2748 KB Output is correct
31 Correct 6 ms 2772 KB Output is correct
32 Correct 5 ms 2796 KB Output is correct
33 Correct 21 ms 3388 KB Output is correct
34 Correct 14 ms 3284 KB Output is correct

Subtask #4
21.0 / 21.0

# 결과 실행 시간 메모리 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 1 ms 2388 KB Output is correct
5 Correct 1 ms 2388 KB Output is correct
6 Correct 1 ms 2388 KB Output is correct
7 Correct 1 ms 2388 KB Output is correct
8 Correct 1 ms 2388 KB Output is correct
9 Correct 2 ms 2388 KB Output is correct
10 Correct 2 ms 2388 KB Output is correct
11 Correct 3 ms 2408 KB Output is correct
12 Correct 2 ms 2388 KB Output is correct
13 Correct 2 ms 2388 KB Output is correct
14 Correct 5 ms 2516 KB Output is correct
15 Correct 2 ms 2516 KB Output is correct
16 Correct 2 ms 2388 KB Output is correct
17 Correct 3 ms 2644 KB Output is correct
18 Correct 2 ms 2516 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2388 KB Output is correct
22 Correct 2 ms 2516 KB Output is correct
23 Correct 2 ms 2644 KB Output is correct
24 Correct 3 ms 2644 KB Output is correct
25 Correct 2 ms 2644 KB Output is correct
26 Correct 2 ms 2644 KB Output is correct
27 Correct 2 ms 2644 KB Output is correct
28 Correct 4 ms 2772 KB Output is correct
29 Correct 9 ms 2900 KB Output is correct
30 Correct 3 ms 2644 KB Output is correct
31 Correct 5 ms 2772 KB Output is correct
32 Correct 6 ms 2772 KB Output is correct
33 Correct 17 ms 3376 KB Output is correct
34 Correct 13 ms 3356 KB Output is correct
35 Correct 17 ms 3668 KB Output is correct
36 Correct 3 ms 2644 KB Output is correct
37 Correct 12 ms 4052 KB Output is correct
38 Correct 21 ms 4172 KB Output is correct
39 Correct 12 ms 3924 KB Output is correct
40 Correct 12 ms 4032 KB Output is correct
41 Correct 12 ms 4028 KB Output is correct
42 Correct 8 ms 2804 KB Output is correct
43 Correct 6 ms 2772 KB Output is correct
44 Correct 6 ms 2772 KB Output is correct
45 Correct 335 ms 6348 KB Output is correct
46 Correct 284 ms 6220 KB Output is correct

Subtask #5
0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 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 1 ms 2388 KB Output is correct
5 Correct 1 ms 2388 KB Output is correct
6 Correct 1 ms 2388 KB Output is correct
7 Correct 1 ms 2388 KB Output is correct
8 Correct 1 ms 2388 KB Output is correct
9 Correct 1 ms 2388 KB Output is correct
10 Correct 2 ms 2388 KB Output is correct
11 Correct 3 ms 2388 KB Output is correct
12 Correct 2 ms 2388 KB Output is correct
13 Correct 1 ms 2388 KB Output is correct
14 Correct 5 ms 2516 KB Output is correct
15 Correct 2 ms 2516 KB Output is correct
16 Correct 2 ms 2388 KB Output is correct
17 Correct 3 ms 2644 KB Output is correct
18 Correct 2 ms 2516 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2516 KB Output is correct
22 Correct 2 ms 2516 KB Output is correct
23 Correct 2 ms 2644 KB Output is correct
24 Correct 4 ms 2644 KB Output is correct
25 Correct 2 ms 2644 KB Output is correct
26 Correct 2 ms 2644 KB Output is correct
27 Correct 3 ms 2644 KB Output is correct
28 Correct 4 ms 2772 KB Output is correct
29 Correct 7 ms 2900 KB Output is correct
30 Correct 3 ms 2644 KB Output is correct
31 Correct 5 ms 2772 KB Output is correct
32 Correct 4 ms 2772 KB Output is correct
33 Correct 19 ms 3380 KB Output is correct
34 Correct 13 ms 3284 KB Output is correct
35 Correct 17 ms 3668 KB Output is correct
36 Correct 3 ms 2644 KB Output is correct
37 Correct 11 ms 4108 KB Output is correct
38 Correct 16 ms 4188 KB Output is correct
39 Correct 12 ms 3916 KB Output is correct
40 Correct 13 ms 4016 KB Output is correct
41 Correct 13 ms 4032 KB Output is correct
42 Correct 7 ms 2828 KB Output is correct
43 Correct 6 ms 2832 KB Output is correct
44 Correct 6 ms 2772 KB Output is correct
45 Correct 326 ms 6340 KB Output is correct
46 Correct 280 ms 6168 KB Output is correct
47 Correct 26 ms 8780 KB Output is correct
48 Runtime error 20 ms 9528 KB Execution killed with signal 11
49 Halted 0 ms 0 KB -