QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#250742 | #5414. Stop, Yesterday Please No More | cscnk52 | AC ✓ | 38ms | 46016kb | C++14 | 2.6kb | 2023-11-13 16:42:00 | 2023-11-13 16:42:02 |
Judging History
answer
#include<bits/stdc++.h>
#define int long long
#define endl '\n'
using namespace std;
const int N = 1e3 + 7;
int sum[N<<1][N<<1];
int tag[N<<1][N<<1];
const int M=1e3+5;
signed main() {
ios_base::sync_with_stdio(0);
cin.tie(0);cout.tie(0);
int t = 1;
cin >> t;
while (t--) {
int n, m, k;
cin >> n >> m >> k;
string s;
cin >> s;
int slen = s.length();
int max_L=0 , max_R=0 , max_U=0 , max_D=0 , x=0 , y=0;
for(int i=0;i<slen;i++)
{
if(s[i]=='L') y--;
if(s[i]=='R') y++;
if(s[i]=='U') x--;
if(s[i]=='D') x++;
max_L=max(min(max_L , y) , -m);
max_R=min(max(max_R , y) , m);
max_U=max(min(max_U , x) , -n);
max_D=min(max(max_D , x) , n);
}
// cout<<max_L<<" "<<max_R<<" "<<max_U<<" "<<max_D<<endl;
int now_Ux=abs(max_U);
int now_Dx=n-1-max_D;
int now_Ly=abs(max_L);
int now_Ry=m-1-max_R;
// cout<<"now_Ux="<<now_Ux<<" now_Dx="<<now_Dx<<" now_Lx="<<now_Ly<<" now_Rx="<<now_Ry<<endl;
if(now_Ux>now_Dx||now_Ly>now_Ry)
{
if(k==0) cout<<n*m<<endl;
else cout<<0<<endl;
continue;
}
int now_num=(now_Ry-now_Ly+1)*(now_Dx-now_Ux+1);
int holl_x=M , holl_y=M;
now_Ly+=M;
now_Ry+=M;
now_Dx+=M;
now_Ux+=M;
tag[holl_x][holl_y]=1;
for(int i=0;i<(int)s.size();i++)
{
if(s[i]=='L') holl_y++;
if(s[i]=='R') holl_y--;
if(s[i]=='U') holl_x++;
if(s[i]=='D') holl_x--;
tag[holl_x][holl_y]=1;
}
// for(int i=M-10;i<(M+n);i++)
// {
// for(int j=M-10;j<(M+m);j++)
// cout<<tag[i][j]<<" ";
// cout<<endl;
// }
// cout<<endl;
for(int i=M-n-1;i<=(M+n);i++)
for(int j=M-m-1;j<=(M+m);j++)
{
if(sum[i][j]!=0) sum[i][j]=0;
sum[i][j]=sum[i-1][j]+sum[i][j-1]-sum[i-1][j-1]+tag[i][j];
}
int xx=M , yy=M;
for(int i=0;i<slen;i++)
{
if(s[i]=='L') yy++;
if(s[i]=='R') yy--;
if(s[i]=='U') xx++;
if(s[i]=='D') xx--;
tag[xx][yy]=0;
}
int ans=0;
// for(int i=M;i<(M+n);i++)
// {
// for(int j=M;j<(M+m);j++)
// cout<<sum[i][j]<<" ";
// cout<<endl;
// }
// cout<<endl;
//
// for(int i=M-10;i<(M+n);i++)
// {
// for(int j=M-10;j<(M+m);j++)
// cout<<sum[i][j]<<" ";
// cout<<endl;
// }
//
for(int i=0;i<n;i++)
{
for(int j=0;j<m;j++)
{
int real_dx=now_Dx-i;
int real_ux=now_Ux-i;
int real_ly=now_Ly-j;
int real_ry=now_Ry-j;
int cnt_x=sum[real_dx][real_ry]-sum[real_ux-1][real_ry]-sum[real_dx][real_ly-1]+sum[real_ux-1][real_ly-1];
if(now_num-cnt_x==k) ans++;
}
}
cout<<ans<<endl;
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 5508kb
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: 0
Accepted
time: 5ms
memory: 6772kb
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:
ok 1060 numbers
Test #3:
score: 0
Accepted
time: 12ms
memory: 36936kb
input:
1 1000 1000 979065 DDUULULUDULLULLDLUULURRLDURLRDLRRUURUUUDLRLUUDUUDUDLLDDDULU
output:
958416
result:
ok 1 number(s): "958416"
Test #4:
score: 0
Accepted
time: 21ms
memory: 36948kb
input:
1 1000 1000 943471 LRLDLURLDLRDRDUULULRDDLLRURDUURLLDDLDLDDLLLUUURLDRUDRLLUUUUUDLUUDLURURRDLRLRRRLULRRULURLRRDLDRLUDRRLDDLUDRRLLUDLLLRDULRRRRLDUUDRDLULUUUUDRRDULUDLLUUDLDURDRRLRRLDRLDDRURURLUULRRLDLLRLRDRRUULDLDLULLDLLRULLRUULURDURRLUUDUULLULDLRUDDLRLRLLUDDDLLLUDRRLDDULRRURRDURDDRDLLULRLULURLRDLLURD...
output:
889224
result:
ok 1 number(s): "889224"
Test #5:
score: 0
Accepted
time: 38ms
memory: 46016kb
input:
1 1000 1000 315808 LLRURURRDDDULLDDUDRDLRLLLDDDLUDRDURLDULRLRULUUDLUULUUDULLLLDDURLDUULUUDLLDLLDRUDUULRLLRLRUURLRLULLDDLLDUDLLRUUDRLDLUULDLLDRRRURDULLDRRRDURURDRLDURURUDLURLDURRLRRUDUDURDRLRRRDLRRURLURUDRRLDLRULLDLUURDURLURLLRDLRDRUURURDRUDUUUDLRRLUDLUUDUDDRRDUULUUDDRLLULDUUDRURRDRLULRLULDURLURUDLLD...
output:
426
result:
ok 1 number(s): "426"
Test #6:
score: 0
Accepted
time: 15ms
memory: 36912kb
input:
1 1000 1000 986018 LLULDRRRDDURRUDRUURRRDDLUUDUULRULRDULLD
output:
972180
result:
ok 1 number(s): "972180"
Test #7:
score: 0
Accepted
time: 7ms
memory: 36932kb
input:
1 1000 1000 945431 DDRRURUUDLDULLDLDDLRULDLLDDRRLUDRLUURRLDRDLURUURRRRLRURLURULLLDRDDDRRRLDLDRLRDDUURRURDDDLRUURLUURLRDUDDDLLDUURLDLUDLLRRDUUDRLUULLUULDLURRUDLUURLRLRURDUDRRRDRLRUDLLLLURLULRLRLRRDDUDLRLDUUUULUDLLURRLURRDLRURRRULDDLLLRLRDLUDLLDDRULDUULRDDUUDDUDLURDULLDUDDLULRULDRLDDULDULLUDLULUDRURRR...
output:
893000
result:
ok 1 number(s): "893000"
Test #8:
score: 0
Accepted
time: 23ms
memory: 41852kb
input:
1 1000 1000 460035 RDDUURDULDDLDDLDDLDRRULLRLUURLURRRDRUDDDRDLDLDULUDLRLLRRLRRURRRDLRLUDRDURULDRRDDDDDDLRLDULUULDUDRLLUUUURUUDRURLRRULDRDRUUUUULULRURDDRLRULLLRDRRULUDDUDDLLLRDRUULUUDDRLURDLDURRDLRRLDRRUDLUULRDLURULLDLRLLDDURDUDLDULDLLRULRDLRLUULLUDRUDDDLRRDULULLRUURLUURRLLLLRLDRURLLRLDRRDDDRLUUUUDUL...
output:
417
result:
ok 1 number(s): "417"
Test #9:
score: 0
Accepted
time: 14ms
memory: 36980kb
input:
1 1000 1000 992010 LLLLLDLDRRLUDRR
output:
1999
result:
ok 1 number(s): "1999"
Test #10:
score: 0
Accepted
time: 16ms
memory: 37040kb
input:
1 1000 1000 919600 LLDLRUDRLURRUDRDRRDLRUDLRRRUUULDLDURDDDRUURRRLLURULDRLRLULLULDRULULRLRRRURLDDDRUUULUDLLLLRRLLRDDRDULUDLRLRLDRLUDUDURRULUULLDULUULDLLDRDULUDLDULDDUULDDRRURDRDULRRLDRRDUURURRLUUUDRRLDRRDDLULRDDLDLLRLRLLLRULUUUURRRLDLRUDRRLRURDRLDULLLUDRULLDLDRRUUDLRRLLRLDDLUDLRLRRURUUDUULUDURDURRLUU...
output:
944
result:
ok 1 number(s): "944"
Test #11:
score: 0
Accepted
time: 24ms
memory: 37844kb
input:
1 1000 1000 804351 DLRLDLLLLUDRDURRLDDRRLRUULURURDDDRDLRUDDULRRLLULURDRUUDRURRLURRRDRURRDRLULRDLRRDRRDDUDLUDLDULRUURRLRUUDRLDDRDDUUDULUULUUUDLRURULLRDUUDDDRRLDRUDDUUDRURLRDRUDLRLDDRRLLRLRDUDDULLULRLLDDUDDDUULDULLRRULULDUUULUDRRDRLUDLRRDDUDLRRDDLDLDRUULRRRRRLRLULLRDDRDDDULDRRURUDDLURLRLURLRDRULUDULUU...
output:
640000
result:
ok 1 number(s): "640000"