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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#693274 | #5414. Stop, Yesterday Please No More | lselegies | WA | 6ms | 12252kb | C++14 | 2.0kb | 2024-10-31 15:52:10 | 2024-10-31 15:52:10 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int N=2e3+5,M=1e6+5;
int dis[N][N],pre[N][N],a[M],base[N][N];
int sum;
signed main()
{
int t;
cin>>t;
while(t--)
{
int n,m,K;
cin>>n>>m>>K;
for (int i=1;i<=n;i++)
for (int j=1;j<=m;j++)
{
pre[i][j]=0;
dis[i][j]=0;
base[i][j]=0;
}
string s;
cin>>s;
int len=s.size();
s=" "+s;
for (int i=1;i<=len;i++)
a[i]=0;
int lr=0,ud=0,ll=0,rr=0,uu=0,dd=0;
for (int i=1;i<=len;i++)
{
if (s[i]=='U')
{
a[i]=1;
ud++;
uu=max(uu,ud);
}
else if (s[i]=='D')
{
a[i]=2;
ud--;
dd=min(dd,ud);
}
else if (s[i]=='L')
{
a[i]=3;
lr--;
ll=min(ll,lr);
}
else
{
a[i]=4;
lr++;
rr=max(rr,lr);
}
}
sum=0;
//cout<<uu<<' '<<dd<<' '<<ll<<' '<<rr<<endl;
for (int i=1+uu;i<=n+dd;i++)
for (int j=1-ll;j<=m-rr;j++)
sum++;
//sum=(n+dd)
//cout<<sum<<endl;
if (K==0)
{
cout<<n*m<<endl;
continue;
}
else if (sum<K)
{
cout<<0<<endl;
continue;
}
int x=1+uu,y=1-ll;
base[x][y]=1;
for(int i=1;i<=len;i++)
{
if (a[i]==1) x--;
if (a[i]==2) x++;
if (a[i]==3) y--;
if (a[i]==4) y++;
if (base[x][y]) continue;
base[x][y]=1;
}
int xx=n+dd-uu,yy=m-rr+ll;
for (int k=1;k<=n;k++)
for (int l=1;l<=m;l++)
{
if (base[k][l])
{
dis[k][l]++;
dis[k+xx][l]--;
dis[k][l+yy]--;
dis[k+xx][l+yy]++;
}
}
// for (int i=1;i<=n;i++)
// {
// for (int j=1;j<=m;j++)
// cout<<dis[i][j]<<' ';
// cout<<endl;
// }
for (int i=1;i<=n;i++)
for (int j=1;j<=m;j++)
pre[i][j]=pre[i-1][j]+pre[i][j-1]-pre[i-1][j-1]+dis[i][j];
// for (int i=1;i<=n;i++)
// {
// for (int j=1;j<=m;j++)
// cout<<pre[i][j]<<' ';
// cout<<endl;
// }
int res=0;
for (int i=1;i<=n;i++)
for (int j=1;j<=m;j++)
if(sum-pre[i][j]==K) res++;
cout<<res<<endl;
}
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 9736kb
input:
3 4 5 3 ULDDRR 4 5 0 UUUUUUU 4 5 10 UUUUUUU
output:
2 20 0
result:
ok 3 number(s): "2 20 0"
Test #2:
score: -100
Wrong Answer
time: 6ms
memory: 12252kb
input:
1060 19 12 0 UDLDDUUUUDDDLLRDUDUURULUUUDRDUDRDRLRLRLULULLLDLDDRLUUUURUUUDDRLLRUUUDULURUULLRDRLRDDURDUUURRRLURLRUULRRUDURDLUUURDLURDDLUUURDDRLLURRDLRUDLRDRLLRRDRDDLDRURRRLUDULLLRUUDLRRURRDLLRRRDLLRDDDLRLRURURDDDL 11 1 0 UR 3 18 33 UDRLR 17 11 132 RLDRDLDRUU 6 10 13 UULUDDLRDLUUDLDD 1 15 0 D 6 20 50 D...
output:
228 11 20 99 18 15 34 240 15 0 0 13 14 18 26 16 1 19 108 8 2 2 3 7 0 30 16 21 0 8 10 9 15 5 320 11 7 3 0 0 12 0 11 0 0 14 0 22 36 51 23 7 6 4 2 48 28 8 63 22 49 13 10 4 108 10 18 44 0 15 9 0 4 30 14 99 105 10 14 17 0 66 10 11 28 52 34 56 33 14 56 90 14 0 121 3 48 30 36 13 0 30 7 8 3 11 16 45 20 34 0...
result:
wrong answer 606th numbers differ - expected: '1', found: '24'