QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #176321 | #7225. The Kirakira Cycle | ucup-team004# | ML | 846ms | 234064kb | C++20 | 1.5kb | 2023-09-11 15:15:07 | 2023-09-11 15:15:08 |
Judging History
answer
#include <bits/stdc++.h>
using i64 = long long;
constexpr int N = 10000;
constexpr int M = N * (N - 1) / 2;
int f[M + 1];
bool isprime[M + 1];
bool vis[M + 1];
int main() {
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
int n;
std::cin >> n;
if (n == 1) {
std::cout << 1 << "\n";
return 0;
}
int m = n * (n - 1) / 2;
std::fill(isprime + 2, isprime + m + 1, true);
for (int i = 2; i <= n; i++) {
if (isprime[i]) {
for (int j = i * i; j <= m; j += i) {
isprime[j] = false;
}
}
}
for (int i = 1; i <= n; i++) {
f[i] = i;
}
for (int i = 2; i <= m; i++) {
if (isprime[i]) {
for (int j = 1; j <= m / i; j++) {
f[i * j] += f[j];
}
}
}
for (int i = 1; i <= m; i++) {
f[i] += f[i - 1];
}
for (int i = 0; i <= m; i++) {
f[i] = i * n - f[i];
}
int ans = 0;
for (int i = 0; i <= m; i++) {
if (vis[i]) {
continue;
}
int j = i;
int len = 0;
while (!vis[j]) {
vis[j] = true;
j = f[j];
len++;
}
int k = j;
for (int l = 1; l <= len; l++) {
k = f[k];
if (k == j) {
ans = std::max(ans, l);
break;
}
}
}
std::cout << ans << "\n";
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 5764kb
input:
2
output:
1
result:
ok 1 number(s): "1"
Test #2:
score: 0
Accepted
time: 0ms
memory: 7752kb
input:
10
output:
4
result:
ok 1 number(s): "4"
Test #3:
score: 0
Accepted
time: 1ms
memory: 7760kb
input:
43
output:
7
result:
ok 1 number(s): "7"
Test #4:
score: 0
Accepted
time: 0ms
memory: 3588kb
input:
1
output:
1
result:
ok 1 number(s): "1"
Test #5:
score: 0
Accepted
time: 1ms
memory: 7812kb
input:
3
output:
1
result:
ok 1 number(s): "1"
Test #6:
score: 0
Accepted
time: 1ms
memory: 7752kb
input:
4
output:
3
result:
ok 1 number(s): "3"
Test #7:
score: 0
Accepted
time: 1ms
memory: 7732kb
input:
5
output:
2
result:
ok 1 number(s): "2"
Test #8:
score: 0
Accepted
time: 1ms
memory: 7764kb
input:
6
output:
2
result:
ok 1 number(s): "2"
Test #9:
score: 0
Accepted
time: 1ms
memory: 7748kb
input:
7
output:
1
result:
ok 1 number(s): "1"
Test #10:
score: 0
Accepted
time: 1ms
memory: 7688kb
input:
8
output:
3
result:
ok 1 number(s): "3"
Test #11:
score: 0
Accepted
time: 1ms
memory: 7708kb
input:
9
output:
2
result:
ok 1 number(s): "2"
Test #12:
score: 0
Accepted
time: 0ms
memory: 7808kb
input:
11
output:
7
result:
ok 1 number(s): "7"
Test #13:
score: 0
Accepted
time: 0ms
memory: 7768kb
input:
13
output:
6
result:
ok 1 number(s): "6"
Test #14:
score: 0
Accepted
time: 1ms
memory: 7816kb
input:
17
output:
4
result:
ok 1 number(s): "4"
Test #15:
score: 0
Accepted
time: 1ms
memory: 7756kb
input:
19
output:
5
result:
ok 1 number(s): "5"
Test #16:
score: 0
Accepted
time: 0ms
memory: 7752kb
input:
23
output:
3
result:
ok 1 number(s): "3"
Test #17:
score: 0
Accepted
time: 1ms
memory: 7688kb
input:
29
output:
2
result:
ok 1 number(s): "2"
Test #18:
score: 0
Accepted
time: 1ms
memory: 7744kb
input:
31
output:
13
result:
ok 1 number(s): "13"
Test #19:
score: 0
Accepted
time: 0ms
memory: 7820kb
input:
37
output:
5
result:
ok 1 number(s): "5"
Test #20:
score: 0
Accepted
time: 1ms
memory: 7768kb
input:
41
output:
21
result:
ok 1 number(s): "21"
Test #21:
score: 0
Accepted
time: 1ms
memory: 7736kb
input:
60
output:
8
result:
ok 1 number(s): "8"
Test #22:
score: 0
Accepted
time: 1ms
memory: 7760kb
input:
100
output:
11
result:
ok 1 number(s): "11"
Test #23:
score: 0
Accepted
time: 1ms
memory: 7764kb
input:
105
output:
41
result:
ok 1 number(s): "41"
Test #24:
score: 0
Accepted
time: 1ms
memory: 7704kb
input:
128
output:
31
result:
ok 1 number(s): "31"
Test #25:
score: 0
Accepted
time: 1ms
memory: 7816kb
input:
130
output:
25
result:
ok 1 number(s): "25"
Test #26:
score: 0
Accepted
time: 1ms
memory: 7788kb
input:
256
output:
52
result:
ok 1 number(s): "52"
Test #27:
score: 0
Accepted
time: 1ms
memory: 7804kb
input:
290
output:
15
result:
ok 1 number(s): "15"
Test #28:
score: 0
Accepted
time: 2ms
memory: 7912kb
input:
455
output:
104
result:
ok 1 number(s): "104"
Test #29:
score: 0
Accepted
time: 2ms
memory: 9872kb
input:
512
output:
45
result:
ok 1 number(s): "45"
Test #30:
score: 0
Accepted
time: 3ms
memory: 8064kb
input:
777
output:
35
result:
ok 1 number(s): "35"
Test #31:
score: 0
Accepted
time: 0ms
memory: 7996kb
input:
707
output:
175
result:
ok 1 number(s): "175"
Test #32:
score: 0
Accepted
time: 2ms
memory: 7852kb
input:
449
output:
13
result:
ok 1 number(s): "13"
Test #33:
score: 0
Accepted
time: 2ms
memory: 7912kb
input:
573
output:
168
result:
ok 1 number(s): "168"
Test #34:
score: 0
Accepted
time: 4ms
memory: 8108kb
input:
858
output:
49
result:
ok 1 number(s): "49"
Test #35:
score: 0
Accepted
time: 1ms
memory: 7760kb
input:
230
output:
58
result:
ok 1 number(s): "58"
Test #36:
score: 0
Accepted
time: 5ms
memory: 10268kb
input:
972
output:
117
result:
ok 1 number(s): "117"
Test #37:
score: 0
Accepted
time: 0ms
memory: 12152kb
input:
844
output:
47
result:
ok 1 number(s): "47"
Test #38:
score: 0
Accepted
time: 1ms
memory: 7820kb
input:
378
output:
37
result:
ok 1 number(s): "37"
Test #39:
score: 0
Accepted
time: 1ms
memory: 7896kb
input:
423
output:
49
result:
ok 1 number(s): "49"
Test #40:
score: 0
Accepted
time: 0ms
memory: 7772kb
input:
209
output:
20
result:
ok 1 number(s): "20"
Test #41:
score: 0
Accepted
time: 257ms
memory: 103176kb
input:
5645
output:
338
result:
ok 1 number(s): "338"
Test #42:
score: 0
Accepted
time: 22ms
memory: 20004kb
input:
2034
output:
249
result:
ok 1 number(s): "249"
Test #43:
score: 0
Accepted
time: 331ms
memory: 118508kb
input:
6163
output:
206
result:
ok 1 number(s): "206"
Test #44:
score: 0
Accepted
time: 359ms
memory: 128240kb
input:
6422
output:
346
result:
ok 1 number(s): "346"
Test #45:
score: 0
Accepted
time: 14ms
memory: 12960kb
input:
1550
output:
40
result:
ok 1 number(s): "40"
Test #46:
score: 0
Accepted
time: 441ms
memory: 147996kb
input:
6940
output:
674
result:
ok 1 number(s): "674"
Test #47:
score: 0
Accepted
time: 24ms
memory: 20076kb
input:
2068
output:
157
result:
ok 1 number(s): "157"
Test #48:
score: 0
Accepted
time: 330ms
memory: 118596kb
input:
6197
output:
594
result:
ok 1 number(s): "594"
Test #49:
score: 0
Accepted
time: 360ms
memory: 130508kb
input:
6456
output:
913
result:
ok 1 number(s): "913"
Test #50:
score: 0
Accepted
time: 792ms
memory: 233784kb
input:
8776
output:
423
result:
ok 1 number(s): "423"
Test #51:
score: 0
Accepted
time: 99ms
memory: 52060kb
input:
3904
output:
281
result:
ok 1 number(s): "281"
Test #52:
score: 0
Accepted
time: 99ms
memory: 61268kb
input:
4163
output:
230
result:
ok 1 number(s): "230"
Test #53:
score: 0
Accepted
time: 126ms
memory: 62412kb
input:
4422
output:
631
result:
ok 1 number(s): "631"
Test #54:
score: 0
Accepted
time: 143ms
memory: 69720kb
input:
4681
output:
95
result:
ok 1 number(s): "95"
Test #55:
score: 0
Accepted
time: 846ms
memory: 234064kb
input:
8810
output:
835
result:
ok 1 number(s): "835"
Test #56:
score: 0
Accepted
time: 96ms
memory: 54232kb
input:
3938
output:
350
result:
ok 1 number(s): "350"
Test #57:
score: -100
Memory Limit Exceeded
input:
9328
output:
373