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Submission #1016267

# Submission time Handle Problem Language Result Execution time Memory
1016267 2024-07-07T15:18:30 Z huutuan Wombats (IOI13_wombats) C++14
12 / 100
 20000 ms 176860 KB 
#include "wombats.h"

#include <bits/stdc++.h>

using namespace std;

const int inf=1e9;

struct Matrix{
   int data[200][200];
   Matrix (int x=0){
      for (int i=0; i<200; ++i) for (int j=0; j<200; ++j) data[i][j]=x && i==j?0:inf;
   }
   auto & operator[](int x){ return data[x]; }
   const auto & operator[](int x) const { return data[x]; }
   Matrix operator*(const Matrix &a){
      Matrix ans;
      for (int i=0; i<200; ++i){
         for (int k=0; k<200; ++k){
            for (int j=0; j<200; ++j){
               ans[i][j]=min(ans[i][j], data[i][k]+a[k][j]);
            }
         }
      }
      return ans;
   }
};

struct Node{
   Matrix data;
   int tl, tr;
   Node (){
      tl=tr=-1;
   }
};

struct SegmentTree{
   int n;
   vector<int> id;
   vector<Node> t;
   SegmentTree(){
      t.emplace_back();
   }
   void init(int _n){
      n=_n;
      id.assign(n, 0);
   }
   void build(int k, int l, int r){
      if (l==r){
         id[l]=k;
         return;
      }
      int mid=(l+r)>>1;
      t[k].tl=t.size();
      t.emplace_back();
      t[k].tr=t.size();
      t.emplace_back();
      build(t[k].tl, l, mid);
      build(t[k].tr, mid+1, r);
   }
   void build2(int k, int l, int r){
      if (l==r) return;
      int mid=(l+r)>>1;
      build2(t[k].tl, l, mid);
      build2(t[k].tr, mid+1, r);
      t[k].data=t[t[k].tl].data*t[t[k].tr].data;
   }
   void update(int k, int l, int r, int pos){
      if (l==r) return;
      int mid=(l+r)>>1;
      if (pos<=mid) update(t[k].tl, l, mid, pos);
      else update(t[k].tr, mid+1, r, pos);
      t[k].data=t[t[k].tl].data*t[t[k].tr].data;
   }
} st;

int R, C, H[5000][200], V[5000][200];

void solve(){
}

void init(int _R, int _C, int _H[5000][200], int _V[5000][200]) {
   R=_R, C=_C;
   memcpy(H, _H, sizeof H);
   memcpy(V, _V, sizeof V);
   st.init((R+9)/10);
   st.build(0, 0, st.n-1);
   for (int il=0, ir=9; il<R; il+=10, ir+=10){
      ir=min(ir, R-1);
      Matrix cur(1), nxt;
      for (int i=il; i<=ir; ++i){
         for (int j=0; j<C; ++j){
            int sum=0;
            for (int k=j; k<C; ++k){
               if (k!=j) sum+=H[i][k-1];
               nxt[j][k]=sum+(i?V[i-1][j]:0);
               nxt[k][j]=sum+(i?V[i-1][k]:0);
            }
         }
         cur=cur*nxt;
      }
      st.t[st.id[il/10]].data=cur;
   }
   st.build2(0, 0, st.n-1);
}

void changeH(int P, int Q, int W) {
   H[P][Q]=W;
   int il=P/10*10, ir=min(il+10, R-1);
   Matrix cur(1), nxt;
   for (int i=il; i<=ir; ++i){
      for (int j=0; j<C; ++j){
         int sum=0;
         for (int k=j; k<C; ++k){
            if (k!=j) sum+=H[i][k-1];
            nxt[j][k]=sum+(i?V[i-1][j]:0);
            nxt[k][j]=sum+(i?V[i-1][k]:0);
         }
      }
      cur=cur*nxt;
   }
   st.t[st.id[il/10]].data=cur;
   st.update(0, 0, st.n-1, il/10);
}

void changeV(int P, int Q, int W) {
   V[P][Q]=W;
   int il=(P+1)/10*10, ir=min(il+10, R-1);
   Matrix cur(1), nxt;
   for (int i=il; i<=ir; ++i){
      for (int j=0; j<C; ++j){
         int sum=0;
         for (int k=j; k<C; ++k){
            if (k!=j) sum+=H[i][k-1];
            nxt[j][k]=sum+(i?V[i-1][j]:0);
            nxt[k][j]=sum+(i?V[i-1][k]:0);
         }
      }
      cur=cur*nxt;
   }
   st.t[st.id[il/10]].data=cur;
   st.update(0, 0, st.n-1, il/10);
}

int escape(int V1, int V2) {
   return st.t[0].data[V1][V2];
}

Compilation message

grader.c: In function 'int main()':
grader.c:15:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
   15 |  int res;
      |      ^~~

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 20046 ms 173436 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 8796 KB Output is correct
2 Correct 12 ms 8924 KB Output is correct
3 Correct 12 ms 8796 KB Output is correct
4 Correct 109 ms 11452 KB Output is correct
5 Correct 131 ms 11448 KB Output is correct
6 Correct 119 ms 11448 KB Output is correct
7 Correct 118 ms 11452 KB Output is correct
8 Correct 122 ms 11452 KB Output is correct
9 Correct 120 ms 11448 KB Output is correct
10 Correct 118 ms 11448 KB Output is correct
11 Correct 163 ms 13428 KB Output is correct
12 Correct 125 ms 11452 KB Output is correct

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 7343 ms 15912 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Execution timed out 20059 ms 176860 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 7387 ms 15904 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 24.0

# Verdict Execution time Memory Grader output
1 Incorrect 7189 ms 15908 KB Output isn't correct
2 Halted 0 ms 0 KB -