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Submission #636830

# Submission time Handle Problem Language Result Execution time Memory
636830 2022-08-30T09:49:34 Z ogibogi2004 Lucky Numbers (RMI19_lucky) C++14
0 / 100
 164 ms 1152 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
const ll mod=1e9+7;
const ll MAXN=1e5+6;
ll dp[MAXN];
int n,q;
ll a[MAXN];
ll solve(int l,int r)
{
    ll ans=0;
    for(int i=l;i<=r;i++)
    {
        if(i>l+1&&a[i-2]==1&&a[i-1]==3)continue;
        ans+=a[i]*dp[r-i];
        if(a[i]>1&&i<r)ans-=dp[r-i-1];
        if(i!=l&&a[i-1]>=3)ans-=dp[r-i];
        ans+=mod;
        ans%=mod;
        //cout<<i<<" "<<a[i]<<" "<<ans<<endl;
    }
    bool flag=1;
    for(int i=l;i+1<=r;i++)
    {
        if(a[i]==1&&a[i+1]==3)flag=0;
    }
    if(flag)ans++;
    return ans;
}
void precompute()
{
    dp[0]=1;
    dp[1]=10;
    for(int i=2;i<MAXN;i++)
    {
        dp[i]=dp[i-1]*10-dp[i-2];
        dp[i]+=mod;
        dp[i]%=mod;
    }
}
int main()
{
    cin>>n>>q;
    precompute();
    for(int i=1;i<=n;i++)
    {
        char c;
        cin>>c;
        a[i]=c-'0';
    }
    cout<<solve(1,n)<<endl;
    for(int i=0;i<q;i++)
    {
        int t,x,y;
        cin>>t>>x>>y;
        if(t==1)cout<<solve(x,y)<<endl;
        else a[x]=y;
    }
return 0;
}

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 164 ms 1152 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 164 ms 1152 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -