QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#704671 | #5414. Stop, Yesterday Please No More | lzx2017 | WA | 6ms | 8276kb | C++20 | 1.2kb | 2024-11-02 20:35:16 | 2024-11-02 20:35:17 |
Judging History
answer
#include<bits/stdc++.h>
#define int long long
using namespace std;
int i,j,n,m,k,l,x,y,f[3001][3001],vx,vy,fx,fy,xx,yy,xxx,yyy,sum,t;
string s;
void solve(){
cin>>n>>m>>k;
cin>>s;
x=y=xx=yy=xxx=yyy=0;
for(int i=0;i<s.size();i++){
if(s[i]=='U') x--;
else if(s[i]=='D') x++;
else if(s[i]=='L') y--;
else y++;
xx=min(xx,x);yy=min(yy,y);
xxx=max(xxx,x);yyy=max(yyy,y);
}
vx=1+xxx;vy=1+yyy;
fx=n+xx;fy=m+yy;
if(fx<vx||fy<vy){
if(k==0) cout<<n*m<<"\n";
else cout<<"0\n";
return;
}
sum=(fx-vx+1)*(fy-vy+1);
for(int i=0;i<=2*n;i++)
for(int j=0;j<=2*m;j++) f[i][j]=0;
x=n;y=m;f[x][y]=1;
for(int i=0;i<s.size();i++){
if(s[i]=='U') x++;
else if(s[i]=='D') x--;
else if(s[i]=='L') y++;
else y--;
if(x>=1&&x<=2*n&&y>=1&&y<=2*m) f[x][y]=1;
}
for(int i=1;i<=n*2;i++)
for(int j=1;j<=m*2;j++)
f[i][j]+=f[i-1][j]+f[i][j-1]-f[i-1][j-1];
int ans=0;
for(int i=1;i<=n;i++)
for(int j=1;j<=m;j++){
xx=n-i;yy=m-j;
int res=f[fx+xx][fy+yy]-f[fx+xx][vy-1+yy]-f[vx-1+xx][fy+yy]+f[vx-1+xx][vy-1+yy];
if(sum-res==k) ans++;
}
cout<<ans<<endl;
}
signed main()
{
// freopen("1.in","r",stdin);
ios::sync_with_stdio(false);
cin.tie(0);cout.tie(0);
cin>>t;
while(t--) solve();
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3620kb
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: 8276kb
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 1 99 5 15 16 240 6 0 0 1 11 18 13 0 12 16 108 4 1 1 3 48 1 1 3 4 0 7 10 9 4 5 320 8 5 3 0 0 3 0 11 0 0 6 0 22 36 51 12 5 6 1 2 48 28 8 63 11 49 13 4 2 108 7 9 44 0 1 8 0 4 30 12 99 105 5 1 17 0 66 8 11 28 52 15 56 11 5 56 90 14 0 121 3 48 1 16 10 0 30 1 3 3 7 16 45 9 32 0 19 0 4 0 39 0 20 12 ...
result:
wrong answer 3rd numbers differ - expected: '20', found: '1'