oj.uz

Submission #639157

# Submission time Handle Problem Language Result Execution time Memory
639157 2022-09-08T18:28:03 Z CaoHuuKhuongDuy Bob (COCI14_bob) C++14
12 / 120
 123 ms 16172 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long 
typedef pair <int,int> ii;
const int N = 1e3 + 9;
const int oo = 1e10;
int n,m,a[N][N],high[N][N],l[N],r[N],res = 0;
void solve(int a[],int h[],bool kt)
{
    stack <int> s;
    h[0] = -oo;
    s.push(0);
    for (int i = 1;i <= m;i++)
      {
        while (h[i] < h[s.top()] && a[i] == a[s.top()]) s.pop();
        l[i] = s.top() + 1;
        s.push(i);
      }
    while (s.size()) s.pop();
    s.push(m + 1);
    h[m + 1] = -oo;
    for (int i = m;i >= 1;i--)
      {
        while (h[i] <= h[s.top()] && a[i] == a[s.top()]) s.pop();
        r[i] = s.top() - 1;
        s.push(i);
      }
    int lim_r;
    int tmp = res;
    for (int i = 1;i <= m;i++)
      {
        // if (kt) tmp = res;
        tmp = res;
        res += (i - l[i] + 1) * (r[i] - i + 1);
        if (a[r[i] + 1] != a[i] || r[i] == m) lim_r = 1;
        else lim_r = h[r[i] + 1] + 1;
        res += (h[i] - lim_r) * (r[i] - i + 1) + (lim_r - 1) * (r[i] - i + 1);
        // if (kt) cout<<i<<" "<<l[i]<<" "<<r[i]<<" "<<lim_r<<" "<<res - tmp<<endl;
      }  
    // cout<<res-tmp<<endl;
}
signed main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    // freopen("test.inp","r",stdin);
    cin>>n>>m;
    for (int i = 1;i <= n;i++)
      for (int j = 1;j <= m;j++)
        cin>>a[i][j];
    for (int i = 1;i <= n;i++)
      for (int j = 1;j <= m;j++)
        if (a[i][j] != a[i-1][j]) high[i][j] = 1;
        else high[i][j] = high[i-1][j] + 1;
    for (int i = 1;i <= n;i++)
      solve(a[i],high[i],(i == 3));
    cout<<res;
    return 0;
}

Compilation message

bob.cpp: In function 'void solve(long long int*, long long int*, bool)':
bob.cpp:29:9: warning: variable 'tmp' set but not used [-Wunused-but-set-variable]
   29 |     int tmp = res;
      |         ^~~

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 724 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 724 KB Output is correct

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 22 ms 8232 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 22 ms 8228 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 26 ms 8164 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 8144 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 107 ms 16172 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 119 ms 16056 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 116 ms 16092 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 123 ms 16128 KB Output isn't correct
2 Halted 0 ms 0 KB -