QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#636249 | #5414. Stop, Yesterday Please No More | wzxtsl# | AC ✓ | 40ms | 175772kb | C++23 | 3.8kb | 2024-10-12 23:02:11 | 2024-10-12 23:02:18 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define fast ios::sync_with_stdio(false),cin.tie(0),cout.tie(0);
#define int long long
#define For(i,a,aa) for(int i=a;i<=aa;i++)
int n,m,k;
const int N=2e6+7,INF=0x3f3f3f3f;
string s;
int a[3003][3003];
int b[3003][3003];
int nx,ny,u,d,l,r;
void solve(){
cin>>n>>m>>k;
cin>>s;
For(i,1,3*n+1)
For(j,1,3*m+1)
a[i][j]=b[i][j]=0;
d=l=nx=ny=u=r=0;
int len=s.length();
For(i,0,len-1)
{
if(s[i]=='U')
{
ny--;
d=min(d,ny);
}
if(s[i]=='R')
{
nx--;
l=min(l,nx);
}
if(s[i]=='D')
{
ny++;
u=max(u,ny);
}
if(s[i]=='L')
{
nx++;
r=max(r,nx);
}
}
l=-l,d=-d;//cout<<l<<"!"<<r<<"!!";
int nn=n-(u+d),mm=m-(l+r);
if(nn<=0||mm<=0)
{
if(k==0) cout<<m*n<<endl;
else cout<<0<<endl;
return;
}
int nnn=u+d+1,mmm=l+r+1;
nx=l+1,ny=u+1;
a[ny][nx]=1;
For(i,0,len-1)
{
if(s[i]=='U')
{
ny++;
a[ny][nx]=1;
}
if(s[i]=='R')
{
nx--;
a[ny][nx]=1;
}
if(s[i]=='D')
{
ny--;
a[ny][nx]=1;
}
if(s[i]=='L')
{
nx++;
a[ny][nx]=1;
}
}
For(i,1,nnn)
For(j,1,mmm)
{
b[i+nn][j+mm]=a[i][j];
}
mmm=mmm+mm+mm;
nnn=nn+nn+nnn;
// For(i,1,nnn)
// {
// For(j,1,mmm)
// cout<<b[i][j];
// cout<<endl;
// }
nx=1+d+nn;ny=1+l+mm;
//cout<<l<<" "<<d<<" "<<u<<" "<<r<<endl;
int ac[nnn+1][mmm+1];
memset(ac,0,sizeof ac);
for(int i=1;i<=nnn;i++)
{
for(int j=1;j<=mmm;j++){
ac[i][j]+=ac[i][j-1]+ac[i-1][j]-ac[i-1][j-1]+b[i][j];
// cout<<ac[i][j]<<" ";
}
// cout<<endl;
}//cout<<nx<<" "<<ny<<endl;
int bro=0;//cout<<nx-d<<" "<<nx+u<<" "<<ny-r<<" "<<ny+l<<endl;
//cout<<l<<" "<<r<<endl;
// cout<<nx-d<<" "<<nx+u+nn-1<<" "<<ny-l<<" "<<ny+r+mm-1<<endl;
// 1 2
// cout<<ac[5][6]-ac[5][3]-ac[3][6]+ac[3][3];
for(int i=nx-d;i<=nx+u+nn-1;i++){
for(int j=ny-l;j<=ny+r+mm-1;j++){
//cout<<"^&"<<endl;
if(i<nn+1){
if(j<mm+1){
int ans=0;
ans=ac[i][j]-ac[i][0]-ac[0][j]+ac[0][0];
if(ans==nn*mm-k){
// cout<<i<<" "<<j<<"?"<<endl;
bro++;
}
}
else{
int ans=0;
ans=ac[i][j]-ac[i][j-mm]-ac[0][j]+ac[0][j-mm];
if(ans==nn*mm-k){
// cout<<i<<" "<<j<<"?"<<endl;
bro++;
}
}
}
else{
if(j<mm+1){
int ans=0;
ans=ac[i][j]-ac[i][0]-ac[i-nn][j]+ac[i-nn][0];
if(ans==nn*mm-k){
// cout<<i<<" "<<j<<"?"<<endl;
bro++;
}
}
else{
int ans=0;
ans=ac[i][j]-ac[i][j-mm]-ac[i-nn][j]+ac[i-nn][j-mm];
if(ans==nn*mm-k){
// cout<<i<<" "<<j<<"?"<<endl;
bro++;
}
}
}
}
}
cout<<bro<<endl;
}
signed main(){
fast;
int t=1;
cin>>t;
while(t--)
{
solve();
}
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 5820kb
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: 8ms
memory: 20860kb
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: 24ms
memory: 175436kb
input:
1 1000 1000 979065 DDUULULUDULLULLDLUULURRLDURLRDLRRUURUUUDLRLUUDUUDUDLLDDDULU
output:
958416
result:
ok 1 number(s): "958416"
Test #4:
score: 0
Accepted
time: 28ms
memory: 175012kb
input:
1 1000 1000 943471 LRLDLURLDLRDRDUULULRDDLLRURDUURLLDDLDLDDLLLUUURLDRUDRLLUUUUUDLUUDLURURRDLRLRRRLULRRULURLRRDLDRLUDRRLDDLUDRRLLUDLLLRDULRRRRLDUUDRDLULUUUUDRRDULUDLLUUDLDURDRRLRRLDRLDDRURURLUULRRLDLLRLRDRRUULDLDLULLDLLRULLRUULURDURRLUUDUULLULDLRUDDLRLRLLUDDDLLLUDRRLDDULRRURRDURDDRDLLULRLULURLRDLLURD...
output:
889224
result:
ok 1 number(s): "889224"
Test #5:
score: 0
Accepted
time: 32ms
memory: 164324kb
input:
1 1000 1000 315808 LLRURURRDDDULLDDUDRDLRLLLDDDLUDRDURLDULRLRULUUDLUULUUDULLLLDDURLDUULUUDLLDLLDRUDUULRLLRLRUURLRLULLDDLLDUDLLRUUDRLDLUULDLLDRRRURDULLDRRRDURURDRLDURURUDLURLDURRLRRUDUDURDRLRRRDLRRURLURUDRRLDLRULLDLUURDURLURLLRDLRDRUURURDRUDUUUDLRRLUDLUUDUDDRRDUULUUDDRLLULDUUDRURRDRLULRLULDURLURUDLLD...
output:
426
result:
ok 1 number(s): "426"
Test #6:
score: 0
Accepted
time: 28ms
memory: 175556kb
input:
1 1000 1000 986018 LLULDRRRDDURRUDRUURRRDDLUUDUULRULRDULLD
output:
972180
result:
ok 1 number(s): "972180"
Test #7:
score: 0
Accepted
time: 27ms
memory: 174904kb
input:
1 1000 1000 945431 DDRRURUUDLDULLDLDDLRULDLLDDRRLUDRLUURRLDRDLURUURRRRLRURLURULLLDRDDDRRRLDLDRLRDDUURRURDDDLRUURLUURLRDUDDDLLDUURLDLUDLLRRDUUDRLUULLUULDLURRUDLUURLRLRURDUDRRRDRLRUDLLLLURLULRLRLRRDDUDLRLDUUUULUDLLURRLURRDLRURRRULDDLLLRLRDLUDLLDDRULDUULRDDUUDDUDLURDULLDUDDLULRULDRLDDULDULLUDLULUDRURRR...
output:
893000
result:
ok 1 number(s): "893000"
Test #8:
score: 0
Accepted
time: 39ms
memory: 168016kb
input:
1 1000 1000 460035 RDDUURDULDDLDDLDDLDRRULLRLUURLURRRDRUDDDRDLDLDULUDLRLLRRLRRURRRDLRLUDRDURULDRRDDDDDDLRLDULUULDUDRLLUUUURUUDRURLRRULDRDRUUUUULULRURDDRLRULLLRDRRULUDDUDDLLLRDRUULUUDDRLURDLDURRDLRRLDRRUDLUULRDLURULLDLRLLDDURDUDLDULDLLRULRDLRLUULLUDRUDDDLRRDULULLRUURLUURRLLLLRLDRURLLRLDRRDDDRLUUUUDUL...
output:
417
result:
ok 1 number(s): "417"
Test #9:
score: 0
Accepted
time: 30ms
memory: 175772kb
input:
1 1000 1000 992010 LLLLLDLDRRLUDRR
output:
1999
result:
ok 1 number(s): "1999"
Test #10:
score: 0
Accepted
time: 23ms
memory: 174552kb
input:
1 1000 1000 919600 LLDLRUDRLURRUDRDRRDLRUDLRRRUUULDLDURDDDRUURRRLLURULDRLRLULLULDRULULRLRRRURLDDDRUUULUDLLLLRRLLRDDRDULUDLRLRLDRLUDUDURRULUULLDULUULDLLDRDULUDLDULDDUULDDRRURDRDULRRLDRRDUURURRLUUUDRRLDRRDDLULRDDLDLLRLRLLLRULUUUURRRLDLRUDRRLRURDRLDULLLUDRULLDLDRRUUDLRRLLRLDDLUDLRLRRURUUDUULUDURDURRLUU...
output:
944
result:
ok 1 number(s): "944"
Test #11:
score: 0
Accepted
time: 40ms
memory: 173472kb
input:
1 1000 1000 804351 DLRLDLLLLUDRDURRLDDRRLRUULURURDDDRDLRUDDULRRLLULURDRUUDRURRLURRRDRURRDRLULRDLRRDRRDDUDLUDLDULRUURRLRUUDRLDDRDDUUDULUULUUUDLRURULLRDUUDDDRRLDRUDDUUDRURLRDRUDLRLDDRRLLRLRDUDDULLULRLLDDUDDDUULDULLRRULULDUUULUDRRDRLUDLRRDDUDLRRDDLDLDRUULRRRRRLRLULLRDDRDDDULDRRURUDDLURLRLURLRDRULUDULUU...
output:
640000
result:
ok 1 number(s): "640000"