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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#544837 | #5414. Stop, Yesterday Please No More | Wuyanru | RE | 1ms | 5840kb | C++14 | 2.0kb | 2024-09-02 20:30:34 | 2024-09-02 20:30:35 |
Judging History
answer
#include<bits/stdc++.h>
#define inf 0x3f3f3f3f3f3f3f3fll
#define debug(x) cerr<<#x<<"="<<x<<endl
using namespace std;
using ll=long long;
using ld=long double;
using pli=pair<ll,int>;
using pi=pair<int,int>;
template<typename A>
using vc=vector<A>;
inline int read()
{
int s=0,w=1;char ch;
while((ch=getchar())>'9'||ch<'0') if(ch=='-') w=-1;
while(ch>='0'&&ch<='9') s=s*10+ch-'0',ch=getchar();
return s*w;
}
inline ll lread()
{
ll s=0,w=1;char ch;
while((ch=getchar())>'9'||ch<'0') if(ch=='-') w=-1;
while(ch>='0'&&ch<='9') s=s*10+ch-'0',ch=getchar();
return s*w;
}
char s[4100001];
int sum[4001][4001];
int n,m,k,len;
inline int get(int u,int d,int l,int r)
{
return sum[d][r]-sum[u-1][r]-sum[d][l-1]+sum[u-1][l-1];
}
inline void solve()
{
n=read(),m=read(),k=read();
scanf("%s",s+1),len=strlen(s+1);
for(int i=0;i<=2*n;i++) memset(sum[i],0,sizeof(int)*(2*m+1));
int x=0,y=0,u=1,d=n,l=1,r=m;sum[n][m]=1;
for(int i=1;i<=len;i++)
{
if(s[i]=='U') x--;
else if(s[i]=='D') x++;
else if(s[i]=='L') y--;
else y++;
sum[n-x][m-y]=1;
r=min(r,m-y),l=max(l,1-y);
d=min(d,n-x),u=max(u,1-x);
// printf("i=%d : %d %d sum[%d][%d]\n",i,x,y,n-x,m-y);
}
// for(int i=0;i<=2*n;i++) for(int j=0;j<=2*m;j++) printf("%d%c",sum[i][j]," \n"[j==2*m]);
for(int i=0;i<=2*n;i++) for(int j=0;j<=2*m;j++)
{
if(i) sum[i][j]+=sum[i-1][j];
if(j) sum[i][j]+=sum[i][j-1];
if(i&&j) sum[i][j]-=sum[i-1][j-1];
}
int ans=0,now=max(0,d-u+1)*max(0,r-l+1);
// printf("%d %d %d %d\n",u,d,l,r);
// printf("now=%d\n",now);
if(!now)
{
if(!k) printf("%d\n",n*m);
else printf("0\n");
return ;
}
for(int i=1;i<=n;i++) for(int j=1;j<=m;j++)
{
int t=now-get(u-i+n,d-i+n,l-j+m,r-j+m);
if(t==k) ans++;
}
printf("%d\n",ans);
}
int main()
{
int T=read();
while(T--) solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 5840kb
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
Runtime Error
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...