oj.uz

Submission #850920

# Submission time Handle Problem Language Result Execution time Memory
850920 2023-09-17T19:12:29 Z Dextar Radio Towers (IOI22_towers) C++17
29 / 100
 4000 ms 19140 KB 
#include <cstdio>
#ifdef DEBUG
    #define D(X) X
#else
    #define D(X)
#endif
#include <bits/stdc++.h>
#define fr first
#define sc second
#define ll long long
#define pi 3.14159265359
#define pub push_back
#define pob pop_back
#define pari pair<int,int>
#define parli pair<long, long>

using namespace std;

const int INF = 1000 * 1000 * 1000;
const ll INF2 = 1LL * 1000 * 1000 * 1000 * 1000 * 1000 * 1000;
const int mod = 1000 * 1000 * 1000 + 7;

bool comp(pari& v1, pari& v2)
{
    return v1.fr < v2.fr;
}


struct seg {
      vector<int> tree;
      int sz;

      void build(int n) {
          sz = 1;
          while(sz<n) {
              sz *= 2;
          }
          tree.resize(2*sz + 1, 0);
      }

      void clean()
      {
          for(int i=0; i<tree.size(); i++) {
              tree[i] = 0;
          }
      }

      void recSet(int idx, int lx, int rx, int i, int val) {
           if(rx-lx==1) {
               tree[idx] = val;
               return;
           }
           int mid = (lx+rx)/2;
           if(i<mid) {
               recSet(2*idx+1, lx, mid, i, val);
           } else
           {
               recSet(2*idx+2, mid, rx, i, val);
           }
           tree[idx] = max(tree[2*idx+1], tree[2*idx+2]);
      }

      void setX(int i, int val) {
          recSet(0, 0, sz, i, val);
      }

      int rec_range(int idx, int lx, int rx, int l, int r) {
          if(lx>=l&&rx<=r) {
              return tree[idx];
          }
          if(rx<=l||lx>=r) return 0;
          int mid = (lx+rx)/2;
          int left = rec_range(2*idx+1, lx, mid, l, r);
          int right = rec_range(2*idx+2, mid, rx, l, r);
          return max(left, right);
      }

      int range(int l, int r) {
          if(l>=r) {
             return 0;
          }
          return rec_range(0, 0, sz, l, r);
      }
};

struct seg2 {
      vector<int> tree;
      int sz;

      void build(int n) {
          sz = 1;
          while(sz<n) {
              sz *= 2;
          }
          tree.resize(2*sz + 1, INF);
      }

      void clean()
      {
          for(int i=0; i<tree.size(); i++) {
              tree[i] = INF;
          }
      }

      void recSet(int idx, int lx, int rx, int i, int val) {
           if(rx-lx==1) {
               tree[idx] = val;
               return;
           }
           int mid = (lx+rx)/2;
           if(i<mid) {
               recSet(2*idx+1, lx, mid, i, val);
           } else
           {
               recSet(2*idx+2, mid, rx, i, val);
           }
           tree[idx] = min(tree[2*idx+1], tree[2*idx+2]);
      }

      void setX(int i, int val) {
          recSet(0, 0, sz, i, val);
      }

      int rec_range(int idx, int lx, int rx, int l, int r) {
          if(lx>=l&&rx<=r) {
              return tree[idx];
          }
          if(rx<=l||lx>=r) return INF;
          int mid = (lx+rx)/2;
          int left = rec_range(2*idx+1, lx, mid, l, r);
          int right = rec_range(2*idx+2, mid, rx, l, r);
          return min(left, right);
      }

      int range(int l, int r) {
          return rec_range(0, 0, sz, l, r);
      }

      int low1(int idx, int lx, int rx, int l, int r, int val, int dir)
      {
           if(tree[idx]>=val||l>=rx||lx>=r) {
              if(dir==0)
                return -1;
              return INF;
           }
           if(rx-lx==1) {
               return lx;
           }
           int mid = (lx+rx)/2;
           int id1 = low1(2*idx+1, lx, mid, l, r, val, dir);
           int id2 = low1(2*idx+2, mid, rx, l, r, val, dir);
           if(dir==0) {
               return max(id1, id2);
           }
           return min(id1, id2);
      }

      int low1(int l, int r, int val, int dir)
      {
          return low1(0, 0, sz, l, r, val, dir);
      }
};


vector<int> dp;
seg mint, maxt, st2;
map<int, int> ord;
vector<int> h;
int res = 0;
int center = -1;
vector<int> pref, left1, right1, difh;
int qcnt = 0;
seg2 st1;


void init2(int l, int r, int d)
{
    int n = h.size();
    res = 0;
    for(int i=0; i<=n; i++) {
        dp[i] = 0;
    }
    vector<int> used(n+1, 0);
    vector<int> nums;
    for(int i=l; i<=r; i++) {
        int f1 = 0, f2 = 0;
        nums.pub(h[i]);
        nums.pub(h[i]-d);
        nums.pub(h[i]+d);
        if(i>l) {
            if(h[i]>=h[i-1]) {
                f1 = 1;
            } else
            {
                f1 = 2;
            }
        }
        if(i<r) {
            if(h[i]>=h[i+1]) {
                f2 = 1;
            } else
            {
                f2 = 2;
            }
        }
        if(f1==0) {
            f1 = f2;
        }
        if(f2==0) {
            f2 = f1;
        }
        if(f1==f2) {
            used[i] = f1;
        }
    }
    sort(nums.begin(), nums.end());
    ord.clear();
    ord[nums[0]] = 0;
    int sz = nums.size();
    for(int i=1; i<sz; i++) {
        if(nums[i]>nums[i-1]) {
            ord[nums[i]] = ord[nums[i-1]] + 1;
        } else
        {
            ord[nums[i]] = ord[nums[i-1]];
        }
    }
    mint.clean();
    maxt.clean();
    mint.build(sz);
    maxt.build(sz);

    for(int i=r; i>=l; i--) {
        if(used[i]==0) {
            continue;
        }
        if(used[i]==1&&h[i]-d>0) {
            dp[i] = mint.range(0, ord[h[i]-d] + 1);
            maxt.setX(ord[h[i]], dp[i]);
        }
        if(used[i]==2) {
            dp[i] = 1 + maxt.range(ord[h[i]+d], sz);
            mint.setX(ord[h[i]], dp[i]);
        }
        res = max(res, dp[i]);
    }
}

void calc_pref()
{
    int n = h.size();
    pref.resize(n+1);
    pref[0] = 0;
    for(int i=1; i<=n; i++) {
        pref[i] = pref[i-1];
        if(i>1&&i<n) {
            if(h[i-1]<h[i-2]&&h[i-1]<h[i]) {
                pref[i]++;
            }
        } else if(i>1)
        {
            if(h[i-1]<h[i-2]) {
                pref[i]++;
            }
        } else
        {
            if(h[i-1]<h[i]) {
                pref[i]++;
            }
        }
    }
}

void all_arr()
{
    int n = h.size();
    left1.resize(n, INF);
    right1.resize(n, -1);
    st1.build(n);
    st2.build(n);
    for(int i=0; i<n; i++) {
        st1.setX(i, h[i]);
        st2.setX(i, h[i]);
    }
    difh.resize(n);
    for(int i=0; i<n; i++) {
        pari p = {h[i], i};
        left1[p.sc] = st1.low1(0, p.sc, p.fr, 0);
        right1[p.sc] = st1.low1(p.sc + 1, n, p.fr, 1);
        int h1 = 2*INF+10, h2 = h1;
        if(left1[p.sc]!=-1) {
            h1 = st2.range(left1[p.sc]+1, p.sc);
        }
        if(right1[p.sc]!=INF) {
            h2 = st2.range(p.sc+1, right1[p.sc]);
        }  //cout<<h1<<endl;
        difh[p.sc] = min(h1, h2) - p.fr;
    }
    sort(difh.begin(), difh.end());
}


void init(int n, vector<int> h2)
{
    h.resize(n);
    for(int i=0; i<n; i++) {
        h[i] = h2[i];
    }
    dp.resize(n+1);
    int idx = 1;
    while(idx<n&&h[idx]>=h[idx-1]) {
        idx++;
    }
    center = idx - 1;
    while(idx<n&&h[idx]<=h[idx-1]) {
        idx++;
    }
    calc_pref();
    if(idx==n) {
        return;
    }
    center = -1;
}

int max_towers(int l, int r, int d)
{
    qcnt++;
    int n = h.size();
    if(n==1) {
        return 1;
    }
    if(l==r) {
        return 1;
    }
    if(center!=-1) {
        if(r<=center||l>=center) {
            return 1;
        }
        if(h[center]-h[l]>=d&&h[center]-h[r]>=d) {
            return 2;
        }
        return 1;
    }
    if(d==1) {
        if(pref.size()==0) {
            calc_pref();
        }
        int ans = pref[r] - pref[l+1];
        if(h[l]<h[l+1]) {
            ans++;
        }
        if(h[r]<h[r-1]) {
            ans++;
        }
        return ans;
    }
    /*
    for(int i=0; i<n; i++) {
        //cout<<left1[i]<<" ";
        //cout<<right1[i]<<" ";
        //cout<<difh[i]<<" ";
    }
    //cout<<endl;
    */
    if(l==0&&r==h.size()-1) {
        if(qcnt==1) {
            all_arr();
        }
        int lo = 0, hi = n - 1;
        while(lo<=hi) {
            int mid = (lo+hi)/2;
            if(difh[mid]>=d) {
                hi = mid - 1;
            } else
            {
                lo = mid + 1;
            }
        }
        return n - lo;
    }
    if(qcnt==1) {
        qcnt = 7;
        init2(l, r, d);
        return res;
    }
    return res;
}

/*
7
10 20 60 40 50 30 70
*/

/*
int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    //D(freopen("input.txt","r",stdin);)
    //D(freopen("ouput.txt","w",stdout);)
    int t = 1;
    //cin >> t;
    loop:
    while(t--)
    {
        int n;
        cin >> n;
        vector<int> a(n);
        for(int i=0; i<n; i++) {
            cin >> a[i];
        }
        init(n, a);
        int res = max_towers(0, 6, 10);
        if(res==0) {
            res = 1;
        }
        cout << res;
    }
    return 0;
}
*/

Compilation message

towers.cpp: In member function 'void seg::clean()':
towers.cpp:43:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |           for(int i=0; i<tree.size(); i++) {
      |                        ~^~~~~~~~~~~~
towers.cpp: In member function 'void seg2::clean()':
towers.cpp:100:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  100 |           for(int i=0; i<tree.size(); i++) {
      |                        ~^~~~~~~~~~~~
towers.cpp: In function 'int max_towers(int, int, int)':
towers.cpp:365:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  365 |     if(l==0&&r==h.size()-1) {
      |              ~^~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 281 ms 1444 KB Output is correct
2 Correct 554 ms 2368 KB Output is correct
3 Correct 572 ms 2368 KB Output is correct
4 Correct 578 ms 2364 KB Output is correct
5 Correct 530 ms 2368 KB Output is correct
6 Correct 532 ms 2368 KB Output is correct
7 Correct 579 ms 2368 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 600 KB Output is correct
3 Correct 1 ms 600 KB Output is correct
4 Correct 2 ms 600 KB Output is correct
5 Correct 2 ms 600 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 852 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 596 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 500 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 4 ms 344 KB Output is correct
26 Correct 23 ms 344 KB Output is correct
27 Correct 24 ms 344 KB Output is correct
28 Correct 24 ms 344 KB Output is correct
29 Correct 24 ms 344 KB Output is correct
30 Correct 24 ms 344 KB Output is correct
31 Correct 23 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 13 ms 344 KB Output is correct
35 Correct 13 ms 344 KB Output is correct

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 600 KB Output is correct
3 Correct 1 ms 600 KB Output is correct
4 Correct 2 ms 600 KB Output is correct
5 Correct 2 ms 600 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 852 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 596 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 500 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 4 ms 344 KB Output is correct
26 Correct 23 ms 344 KB Output is correct
27 Correct 24 ms 344 KB Output is correct
28 Correct 24 ms 344 KB Output is correct
29 Correct 24 ms 344 KB Output is correct
30 Correct 24 ms 344 KB Output is correct
31 Correct 23 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 13 ms 344 KB Output is correct
35 Correct 13 ms 344 KB Output is correct
36 Correct 28 ms 5564 KB Output is correct
37 Correct 52 ms 9900 KB Output is correct
38 Correct 25 ms 5552 KB Output is correct
39 Correct 46 ms 9228 KB Output is correct
40 Correct 26 ms 5304 KB Output is correct
41 Correct 145 ms 19140 KB Output is correct
42 Correct 13 ms 2744 KB Output is correct
43 Correct 9 ms 2368 KB Output is correct
44 Correct 9 ms 2368 KB Output is correct
45 Correct 11 ms 2740 KB Output is correct
46 Correct 10 ms 2740 KB Output is correct
47 Correct 10 ms 2364 KB Output is correct
48 Correct 10 ms 2368 KB Output is correct
49 Correct 11 ms 2364 KB Output is correct
50 Correct 10 ms 2368 KB Output is correct
51 Correct 9 ms 2368 KB Output is correct
52 Correct 9 ms 2372 KB Output is correct
53 Correct 9 ms 2368 KB Output is correct
54 Correct 10 ms 2392 KB Output is correct
55 Correct 9 ms 2368 KB Output is correct
56 Correct 10 ms 2372 KB Output is correct
57 Execution timed out 4030 ms 5040 KB Time limit exceeded
58 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 429 ms 2368 KB Output is correct
2 Correct 582 ms 2368 KB Output is correct
3 Correct 557 ms 2392 KB Output is correct
4 Correct 580 ms 2624 KB Output is correct
5 Correct 579 ms 2364 KB Output is correct
6 Correct 563 ms 2368 KB Output is correct
7 Correct 533 ms 2344 KB Output is correct
8 Correct 531 ms 2392 KB Output is correct
9 Correct 543 ms 2368 KB Output is correct
10 Correct 520 ms 2372 KB Output is correct
11 Correct 566 ms 2372 KB Output is correct
12 Correct 564 ms 2368 KB Output is correct
13 Correct 519 ms 2368 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 10 ms 2392 KB Output is correct
18 Correct 14 ms 2368 KB Output is correct
19 Correct 10 ms 2360 KB Output is correct
20 Correct 10 ms 2364 KB Output is correct
21 Correct 9 ms 2392 KB Output is correct
22 Correct 9 ms 2364 KB Output is correct
23 Correct 9 ms 2572 KB Output is correct
24 Correct 9 ms 2136 KB Output is correct
25 Correct 10 ms 2368 KB Output is correct
26 Correct 9 ms 2368 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 0 ms 344 KB Output is correct

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 3970 ms 1592 KB Output is correct
2 Execution timed out 4019 ms 5060 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #6
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 600 KB Output is correct
3 Correct 1 ms 600 KB Output is correct
4 Correct 2 ms 600 KB Output is correct
5 Correct 2 ms 600 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 852 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 596 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 500 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 4 ms 344 KB Output is correct
26 Correct 23 ms 344 KB Output is correct
27 Correct 24 ms 344 KB Output is correct
28 Correct 24 ms 344 KB Output is correct
29 Correct 24 ms 344 KB Output is correct
30 Correct 24 ms 344 KB Output is correct
31 Correct 23 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 13 ms 344 KB Output is correct
35 Correct 13 ms 344 KB Output is correct
36 Correct 28 ms 5564 KB Output is correct
37 Correct 52 ms 9900 KB Output is correct
38 Correct 25 ms 5552 KB Output is correct
39 Correct 46 ms 9228 KB Output is correct
40 Correct 26 ms 5304 KB Output is correct
41 Correct 145 ms 19140 KB Output is correct
42 Correct 13 ms 2744 KB Output is correct
43 Correct 9 ms 2368 KB Output is correct
44 Correct 9 ms 2368 KB Output is correct
45 Correct 11 ms 2740 KB Output is correct
46 Correct 10 ms 2740 KB Output is correct
47 Correct 10 ms 2364 KB Output is correct
48 Correct 10 ms 2368 KB Output is correct
49 Correct 11 ms 2364 KB Output is correct
50 Correct 10 ms 2368 KB Output is correct
51 Correct 9 ms 2368 KB Output is correct
52 Correct 9 ms 2372 KB Output is correct
53 Correct 9 ms 2368 KB Output is correct
54 Correct 10 ms 2392 KB Output is correct
55 Correct 9 ms 2368 KB Output is correct
56 Correct 10 ms 2372 KB Output is correct
57 Execution timed out 4030 ms 5040 KB Time limit exceeded
58 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 281 ms 1444 KB Output is correct
2 Correct 554 ms 2368 KB Output is correct
3 Correct 572 ms 2368 KB Output is correct
4 Correct 578 ms 2364 KB Output is correct
5 Correct 530 ms 2368 KB Output is correct
6 Correct 532 ms 2368 KB Output is correct
7 Correct 579 ms 2368 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 1 ms 600 KB Output is correct
13 Correct 1 ms 600 KB Output is correct
14 Correct 2 ms 600 KB Output is correct
15 Correct 2 ms 600 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 852 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 596 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 0 ms 596 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 500 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 4 ms 344 KB Output is correct
36 Correct 23 ms 344 KB Output is correct
37 Correct 24 ms 344 KB Output is correct
38 Correct 24 ms 344 KB Output is correct
39 Correct 24 ms 344 KB Output is correct
40 Correct 24 ms 344 KB Output is correct
41 Correct 23 ms 344 KB Output is correct
42 Correct 1 ms 344 KB Output is correct
43 Correct 1 ms 344 KB Output is correct
44 Correct 13 ms 344 KB Output is correct
45 Correct 13 ms 344 KB Output is correct
46 Correct 28 ms 5564 KB Output is correct
47 Correct 52 ms 9900 KB Output is correct
48 Correct 25 ms 5552 KB Output is correct
49 Correct 46 ms 9228 KB Output is correct
50 Correct 26 ms 5304 KB Output is correct
51 Correct 145 ms 19140 KB Output is correct
52 Correct 13 ms 2744 KB Output is correct
53 Correct 9 ms 2368 KB Output is correct
54 Correct 9 ms 2368 KB Output is correct
55 Correct 11 ms 2740 KB Output is correct
56 Correct 10 ms 2740 KB Output is correct
57 Correct 10 ms 2364 KB Output is correct
58 Correct 10 ms 2368 KB Output is correct
59 Correct 11 ms 2364 KB Output is correct
60 Correct 10 ms 2368 KB Output is correct
61 Correct 9 ms 2368 KB Output is correct
62 Correct 9 ms 2372 KB Output is correct
63 Correct 9 ms 2368 KB Output is correct
64 Correct 10 ms 2392 KB Output is correct
65 Correct 9 ms 2368 KB Output is correct
66 Correct 10 ms 2372 KB Output is correct
67 Execution timed out 4030 ms 5040 KB Time limit exceeded
68 Halted 0 ms 0 KB -