Submission #698464

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
698464	2023-02-13 14:25:21	karrigan	Nautilus (BOI19_nautilus)	C++14	100 / 100	212 ms	684 KiB

nautilus

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#include<bits/stdc++.h>
using namespace std;
bitset<501>dp[2][509];
bitset<501>a[509];
signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    //freopen("usaco.INP","r",stdin);
    //freopen("usaco.OUT","w",stdout);
    int n,m,k;
    cin>>n>>m>>k;
    for (int i=1;i<=n;i++){
        for (int j=1;j<=m;j++){
            char r;
            cin>>r;
            if (r=='.')dp[0][i][j]=a[i][j]=1;
        }
    }
    string s;
    cin>>s;
    s=" "+s;
    for (int i=1;i<=k;i++){
        if (s[i]=='?'){
        for (int j=1;j<=n;j++){
            dp[1][j]=((dp[0][j-1])|(dp[0][j+1])|(dp[0][j]>>1)|(dp[0][j]<<1));
        }
        }
        else if (s[i]=='N'){//up
            for (int j=1;j<=n;j++){
 
 
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• Subtask 1: 29 / 29
• Subtask 2: 37 / 37
• Subtask 3: 34 / 34