QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #605989 | #8776. Not Another Constructive! | rikka_lyly# | TL | 547ms | 159532kb | C++20 | 2.3kb | 2024-10-02 21:14:05 | 2024-10-02 21:14:08 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long
void solve()
{
int n, k;
cin >> n >> k;
string s;
cin >> s;
vector f(n, vector(n + 1, vector(500, vector<bool>(k + 2))));
string ans;
bool haveans = 0;
auto dfs = [&](auto self, int cur, array<int, 3> dp) -> void {
if(haveans)
return;
// if(dp[2] == k)
// {
// haveans = 1;
// return;
// }
if(cur == n)
{
// f[cur][dp[0]][dp[1]][dp[2]] = 1;
if(dp[2] == k)
haveans = 1;
return;
}
if(dp[2] > k)
{
return;
}
if(f[cur][dp[0]][dp[1]][dp[2]])
return;
auto ndp = dp;
if(s[cur] != 'N' && s[cur] != 'A' && s[cur] != 'C')
{
char ch;
if(s[cur] == '?')
ch = 'X';
else
ch = s[cur];
ans.push_back(ch);
self(self, cur + 1, ndp);
if(haveans)
return;
ans.pop_back();
}
if(s[cur] == 'N' || s[cur] == '?')
{
ndp[0]++;
ans.push_back('N');
self(self, cur + 1, ndp);
if(haveans)
return;
ans.pop_back();
ndp[0]--;
}
if(s[cur] == 'A' || s[cur] == '?')
{
ndp[1] += ndp[0];
ans.push_back('A');
self(self, cur + 1, ndp);
if(haveans)
return;
ans.pop_back();
ndp[1] -= ndp[0];
}
if(s[cur] == 'C' || s[cur] == '?')
{
ndp[2] += ndp[1];
ans.push_back('C');
self(self, cur + 1, ndp);
if(haveans)
return;
ans.pop_back();
ndp[2] -= ndp[1];
}
f[cur][dp[0]][dp[1]][dp[2]] = 1;
return;
};
dfs(dfs, 0, {0, 0, 0});
if(haveans)
cout << ans << '\n';
else
cout << -1 << '\n';
}
int main()
{
ios::sync_with_stdio(false);
cin.tie(0), cout.tie(0);
int t = 1;
while (t--)
{
solve();
}
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 8ms
memory: 22316kb
input:
22 2 N??A??????C???????????
output:
NXXAXXXXXXCXXXXXXXXXXC
result:
ok correct
Test #2:
score: 0
Accepted
time: 3ms
memory: 16364kb
input:
18 0 COUNTINGSATELLITES
output:
COUNTINGSATELLITES
result:
ok correct
Test #3:
score: 0
Accepted
time: 0ms
memory: 3980kb
input:
2 1 ??
output:
-1
result:
ok correct
Test #4:
score: 0
Accepted
time: 1ms
memory: 3796kb
input:
1 0 ?
output:
X
result:
ok correct
Test #5:
score: 0
Accepted
time: 1ms
memory: 3808kb
input:
1 0 N
output:
N
result:
ok correct
Test #6:
score: 0
Accepted
time: 0ms
memory: 3740kb
input:
1 0 X
output:
X
result:
ok correct
Test #7:
score: 0
Accepted
time: 1ms
memory: 3808kb
input:
1 1 ?
output:
-1
result:
ok correct
Test #8:
score: 0
Accepted
time: 1ms
memory: 4032kb
input:
1 1 N
output:
-1
result:
ok correct
Test #9:
score: 0
Accepted
time: 0ms
memory: 4000kb
input:
1 1 X
output:
-1
result:
ok correct
Test #10:
score: 0
Accepted
time: 0ms
memory: 3980kb
input:
2 0 ??
output:
XX
result:
ok correct
Test #11:
score: 0
Accepted
time: 0ms
memory: 3936kb
input:
2 0 N?
output:
NX
result:
ok correct
Test #12:
score: 0
Accepted
time: 1ms
memory: 3984kb
input:
2 0 ?C
output:
XC
result:
ok correct
Test #13:
score: 0
Accepted
time: 1ms
memory: 3976kb
input:
2 1 N?
output:
-1
result:
ok correct
Test #14:
score: 0
Accepted
time: 1ms
memory: 3952kb
input:
2 1 ?C
output:
-1
result:
ok correct
Test #15:
score: 0
Accepted
time: 1ms
memory: 4452kb
input:
3 1 ???
output:
NAC
result:
ok correct
Test #16:
score: 0
Accepted
time: 1ms
memory: 4160kb
input:
3 1 N??
output:
NAC
result:
ok correct
Test #17:
score: 0
Accepted
time: 1ms
memory: 4420kb
input:
3 1 ?A?
output:
NAC
result:
ok correct
Test #18:
score: 0
Accepted
time: 1ms
memory: 4388kb
input:
3 1 ??C
output:
NAC
result:
ok correct
Test #19:
score: 0
Accepted
time: 1ms
memory: 4160kb
input:
3 1 NA?
output:
NAC
result:
ok correct
Test #20:
score: 0
Accepted
time: 1ms
memory: 4196kb
input:
3 1 N?C
output:
NAC
result:
ok correct
Test #21:
score: 0
Accepted
time: 1ms
memory: 4216kb
input:
3 1 ?AC
output:
NAC
result:
ok correct
Test #22:
score: 0
Accepted
time: 1ms
memory: 4772kb
input:
4 1 ????
output:
XNAC
result:
ok correct
Test #23:
score: 0
Accepted
time: 0ms
memory: 4472kb
input:
4 1 X???
output:
XNAC
result:
ok correct
Test #24:
score: 0
Accepted
time: 1ms
memory: 4536kb
input:
4 1 ???Z
output:
NACZ
result:
ok correct
Test #25:
score: 0
Accepted
time: 0ms
memory: 4472kb
input:
4 1 ?AA?
output:
-1
result:
ok correct
Test #26:
score: 0
Accepted
time: 1ms
memory: 4472kb
input:
4 1 N???
output:
NXAC
result:
ok correct
Test #27:
score: 0
Accepted
time: 1ms
memory: 4472kb
input:
4 1 ?N??
output:
XNAC
result:
ok correct
Test #28:
score: 0
Accepted
time: 1ms
memory: 4540kb
input:
4 1 ??N?
output:
NANC
result:
ok correct
Test #29:
score: 0
Accepted
time: 1ms
memory: 4776kb
input:
4 1 ???N
output:
NACN
result:
ok correct
Test #30:
score: 0
Accepted
time: 1ms
memory: 4536kb
input:
4 1 A???
output:
ANAC
result:
ok correct
Test #31:
score: 0
Accepted
time: 1ms
memory: 4476kb
input:
4 1 ?A??
output:
NAXC
result:
ok correct
Test #32:
score: 0
Accepted
time: 1ms
memory: 4472kb
input:
4 1 ??A?
output:
XNAC
result:
ok correct
Test #33:
score: 0
Accepted
time: 1ms
memory: 4732kb
input:
4 1 ???A
output:
NACA
result:
ok correct
Test #34:
score: 0
Accepted
time: 1ms
memory: 4416kb
input:
4 1 C???
output:
CNAC
result:
ok correct
Test #35:
score: 0
Accepted
time: 1ms
memory: 4476kb
input:
4 1 ?C??
output:
NCAC
result:
ok correct
Test #36:
score: 0
Accepted
time: 0ms
memory: 4732kb
input:
4 1 ??C?
output:
NACX
result:
ok correct
Test #37:
score: 0
Accepted
time: 0ms
memory: 4536kb
input:
4 1 ???C
output:
XNAC
result:
ok correct
Test #38:
score: 0
Accepted
time: 0ms
memory: 4960kb
input:
5 4 ?????
output:
NNAAC
result:
ok correct
Test #39:
score: 0
Accepted
time: 0ms
memory: 5548kb
input:
6 14 ??????
output:
-1
result:
ok correct
Test #40:
score: 0
Accepted
time: 3ms
memory: 6112kb
input:
7 14 ???????
output:
-1
result:
ok correct
Test #41:
score: 0
Accepted
time: 6ms
memory: 6444kb
input:
8 43 ????????
output:
-1
result:
ok correct
Test #42:
score: 0
Accepted
time: 9ms
memory: 7116kb
input:
9 55 ?????????
output:
-1
result:
ok correct
Test #43:
score: 0
Accepted
time: 9ms
memory: 8116kb
input:
10 112 ??????????
output:
-1
result:
ok correct
Test #44:
score: 0
Accepted
time: 5ms
memory: 8664kb
input:
11 110 ???????????
output:
-1
result:
ok correct
Test #45:
score: 0
Accepted
time: 5ms
memory: 9548kb
input:
12 4 ????????????
output:
XXXXXXXNNAAC
result:
ok correct
Test #46:
score: 0
Accepted
time: 7ms
memory: 12292kb
input:
13 193 ?????????????
output:
-1
result:
ok correct
Test #47:
score: 0
Accepted
time: 8ms
memory: 11516kb
input:
14 91 ??????????????
output:
NNNNANAAACACCC
result:
ok correct
Test #48:
score: 0
Accepted
time: 0ms
memory: 12668kb
input:
15 15 ???????????????
output:
XXXXXXXNNNAACAC
result:
ok correct
Test #49:
score: 0
Accepted
time: 12ms
memory: 16260kb
input:
16 261 ????????????????
output:
-1
result:
ok correct
Test #50:
score: 0
Accepted
time: 10ms
memory: 22620kb
input:
17 514 ?????????????????
output:
-1
result:
ok correct
Test #51:
score: 0
Accepted
time: 24ms
memory: 27616kb
input:
18 678 ??????????????????
output:
-1
result:
ok correct
Test #52:
score: 0
Accepted
time: 19ms
memory: 17744kb
input:
19 40 ???????????????????
output:
XXXXXXXXNNNNNAAAACC
result:
ok correct
Test #53:
score: 0
Accepted
time: 50ms
memory: 42984kb
input:
20 1019 ????????????????????
output:
-1
result:
ok correct
Test #54:
score: 0
Accepted
time: 34ms
memory: 54672kb
input:
21 1218 ?????????????????????
output:
-1
result:
ok correct
Test #55:
score: 0
Accepted
time: 44ms
memory: 63516kb
input:
22 1348 ??????????????????????
output:
-1
result:
ok correct
Test #56:
score: 0
Accepted
time: 69ms
memory: 37492kb
input:
23 476 ???????????????????????
output:
-1
result:
ok correct
Test #57:
score: 0
Accepted
time: 90ms
memory: 74260kb
input:
24 1445 ????????????????????????
output:
-1
result:
ok correct
Test #58:
score: 0
Accepted
time: 101ms
memory: 74732kb
input:
25 1331 ?????????????????????????
output:
-1
result:
ok correct
Test #59:
score: 0
Accepted
time: 66ms
memory: 46424kb
input:
26 459 ??????????????????????????
output:
XXNNNNNNNNNAAANAAACACCCCCC
result:
ok correct
Test #60:
score: 0
Accepted
time: 47ms
memory: 43520kb
input:
27 398 ???????????????????????????
output:
XXXXNNNNNNNNNAANAAAACACCCCC
result:
ok correct
Test #61:
score: 0
Accepted
time: 32ms
memory: 39724kb
input:
28 274 ????????????????????????????
output:
XXXXXXXXNNNNNNNANAAAACACCCCC
result:
ok correct
Test #62:
score: 0
Accepted
time: 271ms
memory: 119484kb
input:
29 1624 ?????????????????????????????
output:
-1
result:
ok correct
Test #63:
score: 0
Accepted
time: 339ms
memory: 149888kb
input:
30 2079 ??????????????????????????????
output:
-1
result:
ok correct
Test #64:
score: 0
Accepted
time: 420ms
memory: 159532kb
input:
31 2067 ???????????????????????????????
output:
-1
result:
ok correct
Test #65:
score: 0
Accepted
time: 547ms
memory: 118300kb
input:
32 1267 ????????????????????????????????
output:
-1
result:
ok correct
Test #66:
score: 0
Accepted
time: 282ms
memory: 98624kb
input:
33 928 ?????????????????????????????????
output:
XXXNNNNNNNNNNNNANAAAAAAAACCCCCCCC
result:
ok correct
Test #67:
score: 0
Accepted
time: 96ms
memory: 56240kb
input:
34 298 ??????????????????????????????????
output:
XXXXXXXXXXXXXNNNNNNNANAAAAACCCCACC
result:
ok correct
Test #68:
score: -100
Time Limit Exceeded
input:
35 2361 ???????????????????????????????????
output:
-1