oj.uz

Submission #900894

# Submission time Handle Problem Language Result Execution time Memory
900894 2024-01-09T05:02:01 Z cig32 Coin Collecting (JOI19_ho_t4) C++17
37 / 100
 1000 ms 34756 KB 
#include "bits/stdc++.h"
using namespace std;
#define int long long
#define double long double
const int MAXN = 2e5 + 10;
const int MOD = 1e9 + 7;
mt19937_64 rng((int)std::chrono::steady_clock::now().time_since_epoch().count());
int rnd(int x, int y) {
  int u = uniform_int_distribution<int>(x, y)(rng); return u;
}
int bm(int b, int p) {
  if(p==0) return 1 % MOD;
  int r = bm(b, p >> 1);
  if(p&1) return (((r*r) % MOD) * b) % MOD;
  return (r*r) % MOD;
}
int inv(int b) { 
  return bm(b, MOD-2);
}
int fastlog(int x) {
  return (x == 0 ? -1 : 64 - __builtin_clzll(x) - 1);
}
void printcase(int i) { cout << "Case #" << i << ": "; }
static void run_with_stack_size(void (*func)(void), size_t stsize) {
  char *stack, *send;
  stack = (char *)malloc(stsize);
  send = stack + stsize - 16;
  send = (char *)((uintptr_t)send / 16 * 16);
  asm volatile(
    "mov %%rsp, (%0)\n"
    "mov %0, %%rsp\n"
    :
    : "r"(send));
  func();
  asm volatile("mov (%0), %%rsp\n" : : "r"(send));
  free(stack);
}
int r[3][MAXN], l[3][MAXN], ud[3][MAXN];
void solve(int tc) { 
  int n;
  cin >> n;
  int cnt[3][n+1];
  for(int i=1; i<=2; i++) {
    for(int j=1; j<=n; j++) {
      cnt[i][j] = 0;
    }
  }
  int ans = 0;
  for(int i=1; i<=2*n; i++) {
    int x, y;
    cin >> x >> y;
    if(x < 1) ans += 1 - x;
    if(x > n) ans += x - n;
    if(y < 1) ans += 1 - y;
    if(y > 2) ans += y - 2;
    x = max(x, 1ll);
    y = max(y, 1ll);
    x = min(x, n);
    y = min(y, 2ll);
    cnt[y][x]++;
  }
  vector<pair<int, int> > extra;
  for(int i=1; i<=2; i++) {
    for(int j=1; j<=n; j++) {
      for(int k=1; k<cnt[i][j]; k++) extra.push_back({i, j});
    }
  }
  for(pair<int,int> x: extra) {
    int st = (x.first - 1) * n + x.second;
    vector<pair<int,int>> adj[2*n+1];
    for(int i=1; i<=2; i++) {
      for(int j=1; j<=n; j++) {
        int node = (i-1) * n + j;
        if(j>1 && l[i][j]>=r[i][j-1]) adj[node].push_back({node-1, 1});
        else if(j>1) adj[node].push_back({node-1, -1});
        if(j<n && r[i][j]>=l[i][j+1]) adj[node].push_back({node+1, 1});
        else if(j<n) adj[node].push_back({node+1, -1});
        if(ud[i][j]>=ud[3-i][j]) adj[node].push_back({(2-i)*n+j, 1});
        else adj[node].push_back({(2-i)*n+j, -1});
      }
    }
    bool vis[2*n+1];
    int dist[2*n+1], prv[2*n+1];
    for(int i=1; i<=2*n; i++) {
      dist[i] = 1e9;
      vis[i] = 0;
    }
    priority_queue<pair<int,int>, vector<pair<int,int>>, greater<pair<int,int>>> pq;
    dist[st] = 0;
    pq.push({0, st});
    while(pq.size()) {
      pair<int, int> t = pq.top();
      pq.pop();
      for(pair<int, int> x : adj[t.second]) {
        if(dist[x.first] > dist[t.second] + x.second) {
          dist[x.first] = dist[t.second] + x.second;
          prv[x.first] = t.second;
          pq.push({dist[x.first], x.first});
        }
      }
    }
    int en = -1, mn = 1e9;
    for(int i=1; i<=2; i++) {
      for(int j=1; j<=n; j++) {
        if(!cnt[i][j]) {
          int id = (i-1) * n + j;
          if(dist[id] < mn) {
            mn = dist[id];
            en = id;
          }
        }
      }
    }
    cnt[(st-1)/n+1][(st-1)%n+1]--;
    cnt[(en-1)/n+1][(en-1)%n+1]++;
    ans += dist[en];
    while(en != st) {
      int p = prv[en];
      if(p + n == en) {
        ud[1][p]++;
      }
      else if(p - n == en) {
        ud[2][p-n]++;
      }
      else if(p + 1 == en) {
        if(p <= n) r[1][p]++;
        else r[2][p-n]++;
      }
      else {
        if(p <= n) l[1][p]++;
        else l[2][p-n]++;
      }
      en = p;
    }
    
  }
  cout << ans << "\n";
}

void uwu() {
  ios::sync_with_stdio(0); cin.tie(0);
  int t = 1; //cin >> t;
  for(int i=1; i<=t; i++) solve(i);
}
int32_t main() {
  #ifdef ONLINE_JUDGE
  uwu();
  #endif
  #ifndef ONLINE_JUDGE
  run_with_stack_size(uwu, 1024 * 1024 * 1024); // run with a 1 GiB stack
  #endif
}
/*
g++ A.cpp -std=c++17 -O2 -o A
./A < input.txt

*/

Compilation message

joi2019_ho_t4.cpp: In function 'void solve(long long int)':
joi2019_ho_t4.cpp:82:10: warning: variable 'vis' set but not used [-Wunused-but-set-variable]
   82 |     bool vis[2*n+1];
      |          ^~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 592 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 344 KB Output is correct

Subtask #2
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 592 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 314 ms 872 KB Output is correct
36 Correct 162 ms 1072 KB Output is correct
37 Correct 167 ms 888 KB Output is correct
38 Correct 140 ms 848 KB Output is correct
39 Correct 138 ms 844 KB Output is correct
40 Correct 166 ms 812 KB Output is correct
41 Correct 326 ms 856 KB Output is correct
42 Correct 336 ms 884 KB Output is correct
43 Correct 351 ms 860 KB Output is correct
44 Correct 351 ms 872 KB Output is correct
45 Correct 361 ms 860 KB Output is correct
46 Correct 389 ms 1096 KB Output is correct
47 Correct 356 ms 904 KB Output is correct
48 Correct 355 ms 880 KB Output is correct
49 Correct 375 ms 852 KB Output is correct
50 Correct 380 ms 1100 KB Output is correct
51 Correct 320 ms 848 KB Output is correct
52 Correct 271 ms 2856 KB Output is correct
53 Correct 225 ms 812 KB Output is correct
54 Correct 198 ms 848 KB Output is correct
55 Correct 202 ms 3068 KB Output is correct
56 Correct 240 ms 2900 KB Output is correct
57 Correct 295 ms 848 KB Output is correct
58 Correct 275 ms 844 KB Output is correct
59 Correct 275 ms 852 KB Output is correct
60 Correct 279 ms 844 KB Output is correct
61 Correct 257 ms 1060 KB Output is correct
62 Correct 284 ms 1104 KB Output is correct
63 Correct 286 ms 868 KB Output is correct
64 Correct 265 ms 860 KB Output is correct

Subtask #3
0 / 63.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 592 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 314 ms 872 KB Output is correct
36 Correct 162 ms 1072 KB Output is correct
37 Correct 167 ms 888 KB Output is correct
38 Correct 140 ms 848 KB Output is correct
39 Correct 138 ms 844 KB Output is correct
40 Correct 166 ms 812 KB Output is correct
41 Correct 326 ms 856 KB Output is correct
42 Correct 336 ms 884 KB Output is correct
43 Correct 351 ms 860 KB Output is correct
44 Correct 351 ms 872 KB Output is correct
45 Correct 361 ms 860 KB Output is correct
46 Correct 389 ms 1096 KB Output is correct
47 Correct 356 ms 904 KB Output is correct
48 Correct 355 ms 880 KB Output is correct
49 Correct 375 ms 852 KB Output is correct
50 Correct 380 ms 1100 KB Output is correct
51 Correct 320 ms 848 KB Output is correct
52 Correct 271 ms 2856 KB Output is correct
53 Correct 225 ms 812 KB Output is correct
54 Correct 198 ms 848 KB Output is correct
55 Correct 202 ms 3068 KB Output is correct
56 Correct 240 ms 2900 KB Output is correct
57 Correct 295 ms 848 KB Output is correct
58 Correct 275 ms 844 KB Output is correct
59 Correct 275 ms 852 KB Output is correct
60 Correct 279 ms 844 KB Output is correct
61 Correct 257 ms 1060 KB Output is correct
62 Correct 284 ms 1104 KB Output is correct
63 Correct 286 ms 868 KB Output is correct
64 Correct 265 ms 860 KB Output is correct
65 Correct 22 ms 6200 KB Output is correct
66 Execution timed out 1016 ms 34756 KB Time limit exceeded
67 Halted 0 ms 0 KB -