oj.uz

Submission #697183

# Submission time Handle Problem Language Result Execution time Memory
697183 2023-02-08T17:37:32 Z bin9638 Raspad (COI17_raspad) C++17
61 / 100
 6000 ms 43508 KB 
#include<bits/stdc++.h>

using namespace std;
#define N  100010
#define ll long long
#define ii pair<int,int>
#define fs first
#define sc second
#define pb push_back
#define iii pair<int,ii>
#define int ll

#pragma GCC optimize("Ofast")
#pragma GCC optimize("inline")
#pragma GCC optimize("omit-frame-pointer")
#pragma GCC optimize("unroll-loops")

int f[N],a[N][55],n,m;

struct haha
{
    int val=0,sum=0,sl=0;
    int32_t cnt[52]={},id[52]={},ktr[52]={};

    int get(int mod)
    {
        int res=0;
        for(int i=1;i<=m;i++)
            res=(res+f[i]%mod*id[i])%mod;
        return res;
    }

    void DFS(int u,int dem,int h)
    {
        ktr[u]=dem;
        if(ktr[u-1]==0&&a[h][u-1]==1)
            DFS(u-1,dem,h);
        if(ktr[u+1]==0&&a[h][u+1]==1)
            DFS(u+1,dem,h);
        for(int i=1;i<=m;i++)
            if(ktr[i]==0&&id[i]==id[u])
                DFS(i,dem,h);
    }

    void build(int h)
    {
        memset(cnt,0,sizeof(cnt));
        for(int i=1;i<=m;i++)
            if(id[i]!=0)
                cnt[id[i]]=1;
        int dem=m+1;
        for(int i=1;i<=m;i++)
            if(a[h][i]==0)
                id[i]=0;
                else{
                    if(id[i]==0)
                        id[i]=++dem;
                }
        for(int i=1;i<=m;i++)
            if(id[i]!=0&&id[i]<=m)
                cnt[id[i]]=0;
        for(int i=1;i<=m;i++)
            if(cnt[i]>0)
                sum+=sl;
        dem=0;
        memset(ktr,0,sizeof(ktr));
        for(int i=1;i<=m;i++)
            if(ktr[i]==0&&id[i]!=0)
            {
                dem++;
                DFS(i,dem,h);
            }
        for(int i=1;i<=m;i++)
            id[i]=ktr[i];
        val=get(1e9+8277);
    }

    int solve()
    {
        memset(cnt,0,sizeof(cnt));
         for(int i=1;i<=m;i++)
            if(id[i]!=0)
                cnt[id[i]]=1;
        int res=0;
        for(int i=1;i<=m;i++)
            if(cnt[i]!=0)
                res++;
        return res;
    }

};
vector<haha>s,luu,vec;
vector<ii>SS;

int32_t main()
{
  //  freopen("A.inp","r",stdin);
 //   freopen("A.out","w",stdout);
    ios::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);
    cin>>n>>m;
    for(int i=1;i<=n;i++)
    {
        string s;
        cin>>s;
        s=" "+s;
        for(int j=1;j<=m;j++)
        {
           // a[i][j]=rand()%2;
            a[i][j]=(s[j]-'0');
          ///  cout<<i<<" "<<j<<" "<<a[i][j]<<endl;
        }
    }
    for(int i=1;i<=m;i++)
        f[i]=1ll*rand()*rand()*rand();
    int ans=0;
    for(int i=1;i<=n;i++)
    {
        s.emplace_back();
        s.back().sl=1;
        for(int j=0;j<s.size();j++)
            s[j].build(i);
        SS.clear();
        for(int j=0;j<s.size();j++)
            SS.pb({s[j].val,j});
        sort(SS.begin(),SS.end());
        vec.clear();
        for(int j=0;j<s.size();j++)
             vec.pb(s[SS[j].sc]);
        s=vec;
        luu.clear();
        while(!s.empty())
        {
            haha cc=s.back();
            s.pop_back();
            if(!s.empty()&&s.back().val==cc.val)
            {
                s.back().sum+=cc.sum;
                s.back().sl+=cc.sl;
            }else
            {
                luu.pb(cc);
            }
        }
        s=luu;
        for(auto cc:s)
            ans+=cc.sum+cc.solve()*cc.sl;
    }
    cout<<ans;
    return 0;
}

Compilation message

raspad.cpp: In function 'int32_t main()':
raspad.cpp:122:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<haha>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  122 |         for(int j=0;j<s.size();j++)
      |                     ~^~~~~~~~~
raspad.cpp:125:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<haha>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  125 |         for(int j=0;j<s.size();j++)
      |                     ~^~~~~~~~~
raspad.cpp:129:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<haha>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  129 |         for(int j=0;j<s.size();j++)
      |                     ~^~~~~~~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 5 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 3 ms 340 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 5 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 8 ms 724 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 38 ms 724 KB Output is correct
10 Correct 8 ms 724 KB Output is correct
11 Correct 17 ms 792 KB Output is correct
12 Correct 27 ms 756 KB Output is correct
13 Correct 22 ms 748 KB Output is correct

Subtask #3
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 21848 KB Output is correct
2 Correct 227 ms 43376 KB Output is correct
3 Correct 487 ms 43468 KB Output is correct
4 Correct 138 ms 39064 KB Output is correct
5 Correct 62 ms 13244 KB Output is correct
6 Correct 276 ms 43320 KB Output is correct
7 Correct 370 ms 43392 KB Output is correct
8 Correct 212 ms 34780 KB Output is correct

Subtask #4
0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 5 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 8 ms 724 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 38 ms 724 KB Output is correct
10 Correct 8 ms 724 KB Output is correct
11 Correct 17 ms 792 KB Output is correct
12 Correct 27 ms 756 KB Output is correct
13 Correct 22 ms 748 KB Output is correct
14 Correct 80 ms 21848 KB Output is correct
15 Correct 227 ms 43376 KB Output is correct
16 Correct 487 ms 43468 KB Output is correct
17 Correct 138 ms 39064 KB Output is correct
18 Correct 62 ms 13244 KB Output is correct
19 Correct 276 ms 43320 KB Output is correct
20 Correct 370 ms 43392 KB Output is correct
21 Correct 212 ms 34780 KB Output is correct
22 Correct 754 ms 34784 KB Output is correct
23 Correct 3749 ms 43404 KB Output is correct
24 Correct 3653 ms 43404 KB Output is correct
25 Correct 789 ms 43384 KB Output is correct
26 Correct 892 ms 43476 KB Output is correct
27 Correct 1031 ms 43396 KB Output is correct
28 Correct 2546 ms 43508 KB Output is correct
29 Correct 1470 ms 43380 KB Output is correct
30 Correct 545 ms 43368 KB Output is correct
31 Execution timed out 6031 ms 43436 KB Time limit exceeded
32 Halted 0 ms 0 KB -