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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#704833 | #5414. Stop, Yesterday Please No More | lzx2017 | WA | 0ms | 3672kb | C++20 | 1.4kb | 2024-11-02 21:13:53 | 2024-11-02 21:13:53 |
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;
vx=vy=1;
fx=n;fy=m;x=y=xx=xxx=yy=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=max(xx,x);xxx=min(xxx,x);
yy=max(yy,y);yyy=min(yyy,y);
}
vx=xx+1;vy=yy+1;
fx=n+xxx;fy=m+yyy;
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];
cout<<f[i][j]<<" ";
}
cout<<endl;
}
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: 0
Wrong Answer
time: 0ms
memory: 3672kb
input:
3 4 5 3 ULDDRR 4 5 0 UUUUUUU 4 5 10 UUUUUUU
output:
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 3 3 3 3 3 0 0 0 1 3 5 5 5 5 5 0 0 0 1 4 7 7 7 7 7 0 0 0 1 4 7 7 7 7 7 0 0 0 1 4 7 7 7 7 7 0 0 0 1 4 7 7 7 7 7 2 20 0
result:
wrong answer 1st numbers differ - expected: '2', found: '0'