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Submission #1025401

# Submission time Handle Problem Language Result Execution time Memory
1025401 2024-07-17T01:41:45 Z vjudge1 Martian DNA (BOI18_dna) C++17
100 / 100
 618 ms 50172 KB 
#include <bits/stdc++.h>
typedef long double ld;
#define int long long
#define TC int t; cin >> t; for(int _=1; _<=t; _++)
#define bismillah ios::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define pii pair<int, int>
#define pb push_back
#define mp make_pair
using namespace std;

const int N = 2e5+7, INF = 1e18;

int a[N];
int n, k, q;
map<int, int> mapp, frq;

signed main(){
   bismillah;
   cin >> n >> k >> q;
   for(int i=1; i<=n; i++){
      cin >> a[i];
      frq[a[i]]++;
      mapp[a[i]] = INF;
   }

   int done = k;
   while(q--){
      int x, c; cin >> x >> c;
      mapp[x] = c; done--;

      if(frq[x]<c){
         cout << "impossible";
         return 0;
      }
   }

   map<int, int> now;
   map<int, bool> flag;
   int ans = n;
   int l = 1; // l==r allowed

   // find prefix first
   int st = 1;
   for(int i=1; i<=n; i++){
      now[a[i]]++;
      if(now[a[i]]>=mapp[a[i]] && !flag[a[i]]){
         done++;
         flag[a[i]] = 1;
      }

      if(done==k){
         ans = min(ans, i);
         st = i;
         break;
      }
   }

   int r;
   for(r=st; r<=n; r++){
      if(r>st){
         now[a[r]]++;
         if(now[a[r]]>=mapp[a[r]] && !flag[a[r]]){
            done++;
            flag[a[r]] = 1;
         }

         now[a[l]]--;
         if(now[a[l]]<mapp[a[l]] && flag[a[l]]){
            done--;
            flag[a[l]] = 0;
         }l++;
      }

      if(done==k){
         while(l<r && (now[a[l]]>mapp[a[l]] || !flag[a[l]])){
            now[a[l]]--;
            l++;
         }
         ans = min(ans, r-l+1);
         /* cout << l << " " << r << '\n';
         break; */
      }
   }
   

   cout << ans;
}
/* 
18 4 3
0 3 0 1 3 1 2 0 0 1 1 2 0 0 1 3 1 2
0 2
1 2
2 1
 */

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 604 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 3 ms 860 KB Output is correct
4 Correct 4 ms 1372 KB Output is correct
5 Correct 3 ms 860 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 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

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 2200 KB Output is correct
2 Correct 12 ms 2396 KB Output is correct
3 Correct 20 ms 2436 KB Output is correct
4 Correct 14 ms 2396 KB Output is correct
5 Correct 300 ms 22956 KB Output is correct
6 Correct 14 ms 2396 KB Output is correct
7 Correct 15 ms 2528 KB Output is correct
8 Correct 547 ms 50172 KB Output is correct
9 Correct 168 ms 4944 KB Output is correct
10 Correct 18 ms 2396 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 3 ms 860 KB Output is correct
14 Correct 4 ms 1368 KB Output is correct
15 Correct 3 ms 860 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 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 0 ms 464 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 344 ms 23612 KB Output is correct
2 Correct 313 ms 18516 KB Output is correct
3 Correct 284 ms 18256 KB Output is correct
4 Correct 12 ms 2396 KB Output is correct
5 Correct 105 ms 15904 KB Output is correct
6 Correct 618 ms 48720 KB Output is correct
7 Correct 149 ms 4944 KB Output is correct
8 Correct 222 ms 8020 KB Output is correct
9 Correct 13 ms 2392 KB Output is correct
10 Correct 12 ms 2396 KB Output is correct
11 Correct 17 ms 2396 KB Output is correct
12 Correct 14 ms 2444 KB Output is correct
13 Correct 295 ms 23124 KB Output is correct
14 Correct 14 ms 2392 KB Output is correct
15 Correct 15 ms 2396 KB Output is correct
16 Correct 564 ms 50024 KB Output is correct
17 Correct 168 ms 4944 KB Output is correct
18 Correct 19 ms 2360 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 3 ms 860 KB Output is correct
22 Correct 4 ms 1372 KB Output is correct
23 Correct 5 ms 860 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 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 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct