QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#281542 | #5414. Stop, Yesterday Please No More | PZheng | WA | 6ms | 3808kb | C++14 | 1.3kb | 2023-12-10 11:46:47 | 2023-12-10 11:46:47 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
void solve()
{
int n,m,k;
cin>>n>>m>>k;
int a[2*n+10][2*m+10];
for(int i = 0; i < 2 * n + 10; i++) {
for(int j = 0; j < 2 * m + 10; j++) {
a[i][j] = 1;
}
}
string s;
cin>>s;
int x=n+5,y=m+5,lnow=1,rnow=m,unow=n,dnow=1,l=1,r=m,u=n,d=1;
a[n+5][m+5]=0;
for(int i=0;i<s.size();i++){
char c=s[i];
if(c=='U'){
x--;
unow--;
dnow--;
}
if(c=='D'){
x++;
unow++;
dnow++;
}
if(c=='L'){
y--;
lnow--;
rnow--;
}
if(c=='R'){
y++;
lnow++;
rnow++;
}
l=max(l,lnow);
d=max(d,dnow);
r=min(rnow,r);
u=min(unow,u);
if(x>=0&&y>=0&&x<2*n+10&&y<2*m+10){
a[x][y]=0;
}
}
int cnt=0;
if(l>r||u<d){
if(k==0){
cout<<m*n<<endl;
}
else{
cout<<0<<endl;
}
return;
}
for(int i=1;i<2*n+10;i++){
for(int j=1;j<2*m+10;j++){
//cout<<a[i][j]<<' ';
a[i][j]+=a[i][j-1]+a[i-1][j]-a[i-1][j-1];
}
//cout<<endl;
}
for(int i=0;i<=n;i++){
for(int j=0;j<=m;j++){
int x=n+5-i,y=m+5-j;
//cout<<a[x+u][y+r]-a[x+d-1][y+r]-a[x+u][y+l-1]+a[x+d-1][y+l-1]<<' ';
if(a[x+u][y+r]-a[x+d-1][y+r]-a[x+u][y+l-1]+a[x+d-1][y+l-1]==k){
cnt++;
}
}
//cout<<endl;
}
cout<<cnt<<endl;
}
int main()
{
int t;
cin>>t;
while(t--){
solve();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3564kb
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: 3808kb
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 15 19 108 8 2 2 3 30 10 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 3...
result:
wrong answer 17th numbers differ - expected: '1', found: '15'