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Submission #476500

# Submission time Handle Problem Language Result Execution time Memory
476500 2021-09-27T11:52:13 Z hackerbhaiya Round words (IZhO13_rowords) C++14
36 / 100
 101 ms 21964 KB 
#include<bits/stdc++.h>
// #pragma GCC optimize("Ofast")
// #pragma GCC target("avx,avx2,fma")
// #pragma GCC optimization("unroll-loops")
// #pragma GCC optimize("unroll-loops")
// #pragma GCC optimize("fast-math")
// #pragma GCC optimize("no-stack-protector")
// #define ll __int128
#define ll long long
// #define ll int
#define f(i,a,b) for(int i=a;i<b;i++)
#define mod 1000000007
// #define mod 998244353 
#define mp make_pair
#define uniq(v) (v).erase(unique(all(v)),(v).end())
#define ff first
#define ss second
#define rf(i,a,b) for(int i=a;i>=b;i--)
#define sc(a) scanf("%lld",&a)
#define pf printf
#define sz(a) (int)(a.size())
#define psf push_front
#define ppf pop_front
#define ppb pop_back
#define pb push_back
#define pq priority_queue
#define all(s) s.begin(),s.end()
#define sp(a) setprecision(a)
#define rz resize
#define ld long double
#define inf (ll)1e18
#define ub upper_bound
#define lb lower_bound
#define bs binary_search
#define eb emplace_back
const double pi = acos(-1);
ll binpow(ll a, ll b){ll res=1;while(b!=0){if(b&1)res*=a;a*=a;b>>=1;}return res;}
// ll binpow(ll a, ll b, ll md){ll res=1;a%=mod;while(b!=0){if(b&1)res*=a,res%=md;a*=a,a%=md;b>>=1;}return res%md;}
 
using namespace std;

vector<vector<int> > dp,dir;
string a,b;
int n,m;

void init()
{
    f(i,1,n)
    {
        f(j,1,m)
        {
            if(a[i]==b[j])
                dp[i][j]=1+dp[i-1][j-1],dir[i][j]=1;
            else
            {
                if(dp[i][j-1]>=dp[i-1][j])
                    dp[i][j]=dp[i][j-1];
                else
                    dp[i][j]=dp[i-1][j],dir[i][j]=2;
            }
        }
    }
}

int cal(int i, int j)
{
    int ans=0;
    while(i>0 && j>0)
    {
        if(dir[i][j]==1)
            ans++,i--,j--;
        else if(dir[i][j]==0)
            j--;
        else
            i--;
    }
    return ans;
}

void update(int id)
{
    int i=id,j=1;
    while(j<m && dir[i][j]!=1)
        j++;
    if(j>=m)
        return;
    dir[i][j]=0;
    while(i<n-1 && j<m-1)
    {
        if(dir[i+1][j]==2)
            i++,dir[i][j]=0;
        else if(dir[i+1][j+1]==1)
            i++,j++,dir[i][j]=0;
        else
            j++;
    }
    while(i<n && j<m)
    {
        if(dir[i+1][j]==2)
            i++,dir[i][j]=0;
        else
            break;
    }
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    // freopen("xortransform.in","r",stdin);
    // freopen("xortransform.out","w",stdout);
// #ifndef ONLINE_JUDGE
//     freopen("input.txt","r",stdin);
//     freopen("output.txt","w",stdout);
// #endif
    int z=1;
    // cin>>z;
    f(i,1,z+1)
    {
        //cout<<"Case #"<<i<<": ";
        cin>>a>>b;
        string tempa=a,tempb=b;
        int dif=sz(tempa);
        a="#"+tempa+tempa,b="$"+tempb;
        n=sz(a),m=sz(b);
        dp.rz(n,vector<int> (m)),dir.rz(n+1,vector<int> (m+1));
        init();
        // cout<<dp[9][2]<<"\n";
        // for(int i=0;i<10;i++)
        // {
        //     for(int j=0;j<m;j++)
        //         cout<<dir[i][j]<<" ";
        //     cout<<"\n";
        // }
        int ans=cal(dif+1,m),cur=dif+2;
        f(i,2,n)
        {
            int r=i+dif-1;
            if(r>=n)
                break;
            update(i-1);
            ans=max(ans,cal(cur,m)),cur++;
        }
        reverse(all(tempa));
        a="#"+tempa+tempa;
        init();
        ans=max(ans,cal(dif+1,m));
        f(i,2,n)
        {
            int r=i+dif;
            if(r>=n)
                break;
            update(i);
            ans=max(ans,cal(r,m));
        }
        cout<<ans<<"\n";
    }
}

Subtask #1
36.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 11 ms 2040 KB Output is correct
7 Correct 22 ms 16072 KB Output is correct
8 Incorrect 69 ms 16092 KB Output isn't correct
9 Incorrect 75 ms 16128 KB Output isn't correct
10 Incorrect 62 ms 16128 KB Output isn't correct
11 Incorrect 66 ms 17616 KB Output isn't correct
12 Correct 57 ms 20556 KB Output is correct
13 Incorrect 101 ms 20656 KB Output isn't correct
14 Incorrect 72 ms 18380 KB Output isn't correct
15 Incorrect 85 ms 21964 KB Output isn't correct
16 Incorrect 86 ms 17788 KB Output isn't correct
17 Incorrect 63 ms 13516 KB Output isn't correct
18 Incorrect 93 ms 21096 KB Output isn't correct
19 Incorrect 58 ms 16024 KB Output isn't correct
20 Incorrect 92 ms 18836 KB Output isn't correct
21 Correct 30 ms 4628 KB Output is correct
22 Incorrect 54 ms 7680 KB Output isn't correct
23 Incorrect 62 ms 10444 KB Output isn't correct
24 Incorrect 65 ms 11084 KB Output isn't correct
25 Incorrect 83 ms 14796 KB Output isn't correct