QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #506185 | #6422. Evil Coordinate | Dreamy_Blaze | WA | 25ms | 3828kb | C++14 | 7.3kb | 2024-08-05 15:50:45 | 2024-08-05 15:50:48 |
Judging History
answer
#include <bits/stdc++.h>
#define int long long
#define endl '\n'
#define pii pair<int, int>
#define fr(i, a, b) for (int(i) = (a); (i) <= (b); (i)++)
#define br(i, a, b) for (int(i) = (a); (i) >= (b); (i)--)
#define PI acos(-1)
using namespace std;
const int maxn = 14e2 + 3;
void solve()
{
int x, y;
cin >> x >> y;
string s;
cin >> s;
map<char, int> mp;
for (int i = 0; i < s.size(); i++)
{
mp[s[i]]++;
}
if (x == 0 && y == 0)
{
cout << "Impossible" << endl;
return;
}
int xx = 0, yy = 0;
for (int i = 0; i < s.size(); i++)
{
if (s[i] == 'U')
{
yy++;
}
else if (s[i] == 'D')
{
yy--;
}
else if (s[i] == 'L')
xx--;
else if (s[i] == 'R')
xx++;
}
// cout << x << " " << y << endl;
if (xx == x && yy == y)
{
cout << "Impossible" << endl;
return;
}
// cout<<xx<<" "<<yy<<" "<<x<<" "<<y<<endl;
if (mp['L'] == 0 && mp['R'] == 0 && xx == 0 && x == 0 && ((y > 0 && yy > 0 && yy >= y) || (y < 0 && yy < 0 && yy <= y)))
{
cout << "Impossible" << endl;
return;
}
if (mp['D'] == 0 && mp['U'] == 0 && yy == 0 && y == 0 && ((x > 0 && xx > 0 && xx >= x) || (x < 0 && xx < 0 && xx <= x)))
{
cout << "Impossible" << endl;
return;
}
if (x > 0)
{
if (mp['L'])
{
fr(i, 1, mp['L'])
{
cout << "L";
}
}
if (y > 0)
{
if (mp['D'])
{
fr(i, 1, mp['D'])
{
cout << "D";
}
}
if (xx == x)
{
if (mp['R'])
{
mp['R']--;
fr(i, 1, mp['R'])
{
cout << "R";
}
mp['R']++;
}
// mp['R']++;
}
else
{
if (mp['R'])
{
fr(i, 1, mp['R'])
{
cout << "R";
}
}
}
if (mp['U'])
{
fr(i, 1, mp['U'])
{
cout << "U";
}
}
if (xx == x && mp['R'] != 0)
cout << "R";
}
else
{
if (mp['U'])
{
fr(i, 1, mp['U'])
{
cout << "U";
}
}
if (xx == x)
{
if (mp['R'])
{
mp['R']--;
fr(i, 1, mp['R'])
{
cout << "R";
}
mp['R']++;
}
// mp['R']++;
}
else
{
if (mp['R'])
{
fr(i, 1, mp['R'])
{
cout << "R";
}
}
}
if (mp['D'])
{
fr(i, 1, mp['D'])
{
cout << "D";
}
}
if (xx == x && mp['R'] != 0)
cout << "R";
}
cout << endl;
return;
}
if (x < 0)
{
if (mp['R'])
{
fr(i, 1, mp['R'])
{
cout << "R";
}
}
if (y > 0)
{
if (mp['D'])
{
fr(i, 1, mp['D'])
{
cout << "D";
}
}
if (xx == x)
{
if (mp['L'])
{
mp['L']--;
fr(i, 1, mp['L'])
{
cout << "L";
}
mp['L']--;
}
}
else
{
if (mp['L'])
{
fr(i, 1, mp['L'])
{
cout << "L";
}
// mp['L']--;
}
}
if (mp['U'])
{
fr(i, 1, mp['U'])
{
cout << "U";
}
}
if (xx == x && mp['L'] != 0)
cout << "L";
}
else
{
if (mp['U'])
{
fr(i, 1, mp['U'])
{
cout << "U";
}
}
if (xx == x)
{
if (mp['L'])
{
mp['L']--;
fr(i, 1, mp['L'])
{
cout << "L";
}
mp['L']--;
}
}
else
{
if (mp['L'])
{
fr(i, 1, mp['L'])
{
cout << "L";
}
// mp['L']--;
}
}
if (mp['D'])
{
fr(i, 1, mp['D'])
{
cout << "D";
}
}
if (xx == x && mp['L'] != 0)
cout << "L";
}
cout << endl;
return;
}
if (x == 0)
{
int f = 0;
if (mp['L'])
{
fr(i, 1, mp['L'])
{
cout << "L";
}
f = 1;
}
if (!f)
{
if (mp['R'])
{
fr(i, 1, mp['R'])
{
cout << "R";
}
}
}
if (y > 0)
{
if (mp['D'])
{
fr(i, 1, mp['D'])
{
cout << "D";
}
}
if (mp['U'])
{
fr(i, 1, mp['U'])
{
cout << "U";
}
}
}
else
{
if (mp['U'])
{
fr(i, 1, mp['U'])
{
cout << "U";
}
}
if (mp['D'])
{
fr(i, 1, mp['D'])
{
cout << "D";
}
}
}
if (f)
{
if (mp['R'])
{
fr(i, 1, mp['R'])
{
cout << "R";
}
}
}
cout << endl;
return;
}
}
signed main()
{
ios::sync_with_stdio(false);
cin.tie(0), cout.tie(0);
int T;
cin >> T;
while (T--)
{
solve();
}
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3628kb
input:
5 1 1 RURULLD 0 5 UUU 0 3 UUU 0 2 UUU 0 0 UUU
output:
LLDRRUU UUU Impossible Impossible Impossible
result:
ok 5 cases
Test #2:
score: -100
Wrong Answer
time: 25ms
memory: 3828kb
input:
11109 6 0 RUDUDR 2 0 URU 0 0 UDRU 0 0 R -1 1 LDUUDDRUUL -1 5 RRUUUDUUU -8 4 RRDRLDR 2 0 UD 0 0 UUDD 3 -2 LDDLLLRR 3 -2 LDRURLDD 1 0 RRL -1 0 DUDDLLRDU -4 0 LL -1 -1 DLRLDLUDUR 1 4 URDULUR 0 0 DDUUDUDDDD 0 2 UU 1 0 RRULD 0 -2 LDLRLLDRRL 0 1 RLRLLRLUR -3 0 RL 0 0 D 0 0 L 0 0 DDLRRUDRUD 0 0 DULU 2 0 RR...
output:
UURRDD UUR Impossible Impossible Impossible RRDUUUUUU RRRRDDL UD Impossible LLLLRRDD LLURRDDD Impossible RUULDDDD LL Impossible LDRUUUR Impossible Impossible Impossible LLLLLDDRRR Impossible RL Impossible Impossible Impossible Impossible Impossible LLLUURRRRR ULLLD Impossible UUULDDD UURDDR Impossib...
result:
wrong answer case 13, participant's output is not a permutation of the input