QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #855073 | #7639. Forbidden Set | lichenyu_ac | AC ✓ | 7ms | 9932kb | C++14 | 706b | 2025-01-12 13:52:10 | 2025-01-12 13:52:11 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int N = 1e6 + 10;
int p[N], top, v[N];
void primes(int n = N - 1) {
for (int i = 2; i <= n; i++) {
if (!v[i]) v[i] = p[++top] = i;
for (int j = 1; j <= top; j++) {
if (p[j] > v[i] || p[j] > n / i) break;
v[i * p[j]] = p[j];
}
}
}
bool check(int x, int S) {
while (x) {
int t = x % 10; x /= 10;
if (S >> t & 1) return 0;
}
return 1;
}
int main() {
primes();
int n; cin >> n;
int S = 0;
for (int i = 1; i <= n; i++) {
int x; cin >> x;
S ^= (1 << x);
}
for (int i = 1; i <= top; i++)
if (check(p[i], S)) {
cout << p[i] << endl;
return 0;
}
cout << -1 << endl;
return 0;
}
这程序好像有点Bug，我给组数据试试？
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 6ms
memory: 7708kb
input:
7 0 1 2 4 6 8 9
output:
3
result:
ok 1 number(s): "3"
Test #2:
score: 0
Accepted
time: 5ms
memory: 7836kb
input:
9 0 1 2 3 5 6 7 8 9
output:
-1
result:
ok 1 number(s): "-1"
Test #3:
score: 0
Accepted
time: 6ms
memory: 9448kb
input:
9 0 2 3 4 5 6 7 8 9
output:
11
result:
ok 1 number(s): "11"
Test #4:
score: 0
Accepted
time: 2ms
memory: 7840kb
input:
9 0 1 3 4 5 6 7 8 9
output:
2
result:
ok 1 number(s): "2"
Test #5:
score: 0
Accepted
time: 2ms
memory: 7824kb
input:
9 0 1 2 4 5 6 7 8 9
output:
3
result:
ok 1 number(s): "3"
Test #6:
score: 0
Accepted
time: 0ms
memory: 7744kb
input:
9 0 1 2 3 4 6 7 8 9
output:
5
result:
ok 1 number(s): "5"
Test #7:
score: 0
Accepted
time: 6ms
memory: 9728kb
input:
9 0 1 2 3 4 5 7 8 9
output:
-1
result:
ok 1 number(s): "-1"
Test #8:
score: 0
Accepted
time: 2ms
memory: 7876kb
input:
9 0 1 2 3 4 5 6 8 9
output:
7
result:
ok 1 number(s): "7"
Test #9:
score: 0
Accepted
time: 5ms
memory: 7896kb
input:
9 0 1 2 3 4 5 6 7 9
output:
-1
result:
ok 1 number(s): "-1"
Test #10:
score: 0
Accepted
time: 6ms
memory: 7896kb
input:
9 0 1 2 3 4 5 6 7 8
output:
-1
result:
ok 1 number(s): "-1"
Test #11:
score: 0
Accepted
time: 5ms
memory: 7896kb
input:
4 1 3 7 9
output:
2
result:
ok 1 number(s): "2"
Test #12:
score: 0
Accepted
time: 6ms
memory: 9700kb
input:
7 1 2 3 4 5 7 8
output:
-1
result:
ok 1 number(s): "-1"
Test #13:
score: 0
Accepted
time: 3ms
memory: 9700kb
input:
8 0 1 2 3 4 5 7 8
output:
-1
result:
ok 1 number(s): "-1"
Test #14:
score: 0
Accepted
time: 3ms
memory: 9932kb
input:
8 1 2 3 4 5 6 7 8
output:
-1
result:
ok 1 number(s): "-1"
Test #15:
score: 0
Accepted
time: 2ms
memory: 7812kb
input:
5 1 2 3 5 7
output:
89
result:
ok 1 number(s): "89"
Test #16:
score: 0
Accepted
time: 5ms
memory: 7820kb
input:
6 1 2 3 5 7 8
output:
409
result:
ok 1 number(s): "409"
Test #17:
score: 0
Accepted
time: 2ms
memory: 7892kb
input:
8 0 1 2 3 5 6 7 8
output:
449
result:
ok 1 number(s): "449"
Test #18:
score: 0
Accepted
time: 5ms
memory: 7820kb
input:
5 2 3 5 7 9
output:
11
result:
ok 1 number(s): "11"
Test #19:
score: 0
Accepted
time: 2ms
memory: 7896kb
input:
6 1 2 4 5 7 8
output:
3
result:
ok 1 number(s): "3"
Test #20:
score: 0
Accepted
time: 5ms
memory: 7836kb
input:
8 0 1 2 4 5 7 8 9
output:
3
result:
ok 1 number(s): "3"
Test #21:
score: 0
Accepted
time: 5ms
memory: 7896kb
input:
8 0 1 3 5 6 7 8 9
output:
2
result:
ok 1 number(s): "2"
Test #22:
score: 0
Accepted
time: 2ms
memory: 7812kb
input:
8 0 2 3 5 6 7 8 9
output:
11
result:
ok 1 number(s): "11"
Test #23:
score: 0
Accepted
time: 2ms
memory: 7764kb
input:
8 0 2 4 5 6 7 8 9
output:
3
result:
ok 1 number(s): "3"
Test #24:
score: 0
Accepted
time: 6ms
memory: 9684kb
input:
7 0 2 3 5 6 7 8
output:
11
result:
ok 1 number(s): "11"
Test #25:
score: 0
Accepted
time: 5ms
memory: 7900kb
input:
8 2 3 4 5 6 7 8 9
output:
11
result:
ok 1 number(s): "11"
Test #26:
score: 0
Accepted
time: 5ms
memory: 7836kb
input:
8 0 1 2 5 6 7 8 9
output:
3
result:
ok 1 number(s): "3"
Test #27:
score: 0
Accepted
time: 5ms
memory: 7740kb
input:
1 2
output:
3
result:
ok 1 number(s): "3"
Test #28:
score: 0
Accepted
time: 2ms
memory: 7736kb
input:
10 0 1 2 3 4 5 6 7 8 9
output:
-1
result:
ok 1 number(s): "-1"
Test #29:
score: 0
Accepted
time: 5ms
memory: 7800kb
input:
7 0 2 3 5 6 8 9
output:
7
result:
ok 1 number(s): "7"
Test #30:
score: 0
Accepted
time: 5ms
memory: 7820kb
input:
8 1 2 3 4 5 6 7 9
output:
-1
result:
ok 1 number(s): "-1"
Test #31:
score: 0
Accepted
time: 2ms
memory: 7744kb
input:
4 0 2 6 7
output:
3
result:
ok 1 number(s): "3"
Test #32:
score: 0
Accepted
time: 6ms
memory: 9484kb
input:
5 2 3 4 6 8
output:
5
result:
ok 1 number(s): "5"
Test #33:
score: 0
Accepted
time: 7ms
memory: 7744kb
input:
6 0 2 3 4 5 8
output:
7
result:
ok 1 number(s): "7"
Test #34:
score: 0
Accepted
time: 2ms
memory: 7888kb
input:
3 1 5 7
output:
2
result:
ok 1 number(s): "2"
Test #35:
score: 0
Accepted
time: 2ms
memory: 7800kb
input:
3 1 4 9
output:
2
result:
ok 1 number(s): "2"
Test #36:
score: 0
Accepted
time: 2ms
memory: 7876kb
input:
6 2 3 4 6 7 9
output:
5
result:
ok 1 number(s): "5"
Test #37:
score: 0
Accepted
time: 5ms
memory: 7800kb
input:
7 1 2 3 4 5 6 8
output:
7
result:
ok 1 number(s): "7"
Test #38:
score: 0
Accepted
time: 2ms
memory: 7880kb
input:
6 0 1 3 5 8 9
output:
2
result:
ok 1 number(s): "2"
Test #39:
score: 0
Accepted
time: 5ms
memory: 7820kb
input:
3 1 3 4
output:
2
result:
ok 1 number(s): "2"
Test #40:
score: 0
Accepted
time: 2ms
memory: 7892kb
input:
4 1 5 6 9
output:
2
result:
ok 1 number(s): "2"
Test #41:
score: 0
Accepted
time: 5ms
memory: 7824kb
input:
7 0 2 3 5 6 7 9
output:
11
result:
ok 1 number(s): "11"
Test #42:
score: 0
Accepted
time: 5ms
memory: 7820kb
input:
4 0 3 7 9
output:
2
result:
ok 1 number(s): "2"
Extra Test:
score: 0
Extra Test Passed