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Submission #314252

# Submission time Handle Problem Language Result Execution time Memory
314252 2020-10-19T09:03:05 Z lauran Pinball (JOI14_pinball) C++14
51 / 100
 1000 ms 50808 KB 
#include <bits/stdc++.h>
#define ll long long
using namespace std;

const ll INF = 1e17;
const int NMAX = 1e6 + 5;

int m, n;
ll A[NMAX], B[NMAX], C[NMAX], D[NMAX];
ll dpst[NMAX], dpdr[NMAX];
ll poz, val;
ll st, dr, ansQuery;
ll aint[2][4 * NMAX];

void normalizare() {
   // normalizez 1, A, B, C, n
   set <int> tot;
   tot.insert(1); tot.insert(n);
   for (int i = 1; i <= m; i++) {
      tot.insert(A[i]);
      tot.insert(B[i]);
      tot.insert(C[i]);
   }

   map <int, int> nou;
   int newN = 0;
   for (auto x: tot)
         nou[x] = ++newN;

   for (int i = 1; i <= m; i++) {
      A[i] = nou[A[i]];
      B[i] = nou[B[i]];
      C[i] = nou[C[i]];
   }
   n = newN;
}

void build(int lin, int nod, int l, int r) {
   if (l == r) {
      aint[lin][nod] = INF;
      return;
   }

   int mij = (l + r) / 2;
   build(lin, 2 * nod, l, mij);
   build(lin, 2 * nod + 1, mij + 1, r);

   aint[lin][nod] = INF;
}

void update(int lin, int nod, int l, int r) {
   if (l == r) {
      if (val < aint[lin][nod])
         aint[lin][nod] = val;
      return;
   }

   int mij = (l + r) / 2;
   if (poz <= mij)
      update(lin, 2 * nod, l, mij);
   else
      update(lin, 2 * nod + 1, mij + 1, r);

   aint[lin][nod] = min(aint[lin][2 * nod], aint[lin][2 * nod + 1]);
}

void query(int lin, int nod, int l, int r) {
   if (st <= l && r <= dr) {
      ansQuery = min(ansQuery, aint[lin][nod]);
      return;
   }

   int mij = (l + r) / 2;
   if (st <= mij)
      query(lin, 2 * nod, l, mij);
   if (dr > mij)
      query(lin, 2 * nod + 1, mij + 1, r);
}

int main()
{
   cin >> m >> n;
   for (int i = 1; i <= m; i++) {
      cin >> A[i] >> B[i] >> C[i] >> D[i];
   }

   normalizare();

   build(0, 1, 1, n);
   build(1, 1, 1, n);

   if (A[1] == 1)
      dpst[1] = D[1];
   else
      dpst[1] = INF;
   poz = C[1], val = dpst[1];
   update(0, 1, 1, n);

   if (B[1] == n)
      dpdr[1] = D[1];
   else
      dpdr[1] = INF;
   poz = C[1], val = dpdr[1];
   update(1, 1, 1, n);

   for (int i = 2; i <= m; i++) {
      // dpst[i] = min{dpst[j] + d[i], cu C[j] intre A[i] si B[i]}
      dpst[i] = INF;
      if (A[i] == 1)
         dpst[i] = D[i];
      else {
         st = A[i], dr = B[i];
         ansQuery = INF;
         query(0, 1, 1, n);

         dpst[i] = min(dpst[i], ansQuery + D[i]);
      }
      poz = C[i], val = dpst[i];
      update(0, 1, 1, n);

      dpdr[i] = INF;
      if (B[i] == n)
         dpdr[i] = D[i];
      else {
         st = A[i], dr = B[i];
         ansQuery = INF;
         query(1, 1, 1, n);

         dpdr[i] = min(dpdr[i], ansQuery + D[i]);
      }
      poz = C[i], val = dpdr[i];
      update(1, 1, 1, n);
   }

   ll ans = INF;
   for (int i = 1; i <= m; i++)
      ans = min(ans, dpst[i] + dpdr[i] - D[i]);
   ans < INF ? cout << ans : cout << -1;


   return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 2 ms 512 KB Output is correct
13 Correct 2 ms 512 KB Output is correct
14 Correct 2 ms 512 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 2 ms 512 KB Output is correct
13 Correct 2 ms 512 KB Output is correct
14 Correct 2 ms 512 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 2 ms 512 KB Output is correct
17 Correct 5 ms 640 KB Output is correct
18 Correct 4 ms 384 KB Output is correct
19 Correct 6 ms 768 KB Output is correct
20 Correct 5 ms 512 KB Output is correct
21 Correct 3 ms 640 KB Output is correct
22 Correct 6 ms 768 KB Output is correct
23 Correct 6 ms 768 KB Output is correct
24 Correct 6 ms 768 KB Output is correct

Subtask #4
0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 2 ms 512 KB Output is correct
13 Correct 2 ms 512 KB Output is correct
14 Correct 2 ms 512 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 2 ms 512 KB Output is correct
17 Correct 5 ms 640 KB Output is correct
18 Correct 4 ms 384 KB Output is correct
19 Correct 6 ms 768 KB Output is correct
20 Correct 5 ms 512 KB Output is correct
21 Correct 3 ms 640 KB Output is correct
22 Correct 6 ms 768 KB Output is correct
23 Correct 6 ms 768 KB Output is correct
24 Correct 6 ms 768 KB Output is correct
25 Correct 53 ms 3448 KB Output is correct
26 Correct 164 ms 8824 KB Output is correct
27 Correct 495 ms 18296 KB Output is correct
28 Correct 437 ms 6404 KB Output is correct
29 Correct 369 ms 16376 KB Output is correct
30 Correct 531 ms 8952 KB Output is correct
31 Correct 890 ms 30072 KB Output is correct
32 Correct 744 ms 21716 KB Output is correct
33 Correct 112 ms 9596 KB Output is correct
34 Correct 428 ms 26104 KB Output is correct
35 Correct 659 ms 50552 KB Output is correct
36 Execution timed out 1068 ms 50808 KB Time limit exceeded
37 Halted 0 ms 0 KB -