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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#572738 | #9309. Graph | MiniLong | RE | 7ms | 14540kb | C++17 | 3.0kb | 2024-09-18 16:11:07 | 2024-09-18 16:11:07 |
Judging History
answer
#include <bits/stdc++.h>
#define _rep(i, x, y) for(int i = x; i <= y; ++i)
#define _req(i, x, y) for(int i = x; i >= y; --i)
#define _rev(i, u) for(int i = head[u]; i; i = e[i].nxt)
#define pb push_back
#define fi first
#define se second
#define mst(f, i) memset(f, i, sizeof f)
using namespace std;
#ifdef ONLINE_JUDGE
#define debug(...) 0
#else
#define debug(...) fprintf(stderr, __VA_ARGS__), fflush(stderr)
#endif
typedef long long ll;
typedef pair<int, int> PII;
namespace fastio{
#ifdef ONLINE_JUDGE
char ibuf[1 << 20],*p1 = ibuf, *p2 = ibuf;
#define get() p1 == p2 && (p2 = (p1 = ibuf) + fread(ibuf, 1, 1 << 20, stdin), p1 == p2) ? EOF : *p1++
#else
#define get() getchar()
#endif
template<typename T> inline void read(T &t){
T x = 0, f = 1;
char c = getchar();
while(!isdigit(c)){
if(c == '-') f = -f;
c = getchar();
}
while(isdigit(c)) x = x * 10 + c - '0', c = getchar();
t = x * f;
}
template<typename T, typename ... Args> inline void read(T &t, Args&... args){
read(t);
read(args...);
}
template<typename T> void write(T t){
if(t < 0) putchar('-'), t = -t;
if(t >= 10) write(t / 10);
putchar(t % 10 + '0');
}
template<typename T, typename ... Args> void write(T t, Args... args){
write(t), putchar(' '), write(args...);
}
template<typename T> void writeln(T t){
write(t);
puts("");
}
template<typename T> void writes(T t){
write(t), putchar(' ');
}
#undef get
};
using namespace fastio;
#define multitest() int T; read(T); _rep(tCase, 1, T)
namespace Calculation{
const ll mod = 998244353;
ll ksm(ll p, ll h){ll base = p % mod, res = 1; while(h){if(h & 1ll) res = res * base % mod; base = base * base % mod, h >>= 1ll;} return res;}
void dec(ll &x, ll y){x = ((x - y) % mod + mod) % mod;}
void add(ll &x, ll y){x = (x + y) % mod;}
void mul(ll &x, ll y){x = x * y % mod;}
ll sub(ll x, ll y){return ((x - y) % mod + mod) % mod;}
ll pls(ll x, ll y){return ((x + y) % mod + mod) % mod;}
ll mult(ll x, ll y){return x * y % mod;}
}
using namespace Calculation;
const int N = 1e6 + 5, _ = 1e6;
ll n, cnt, prime[N], pre[N];
bool vis[N];
void init(){
_rep(i, 2, _){
pre[i] = pre[i - 1];
if(!vis[i]) prime[++cnt] = i, pre[i]++;
for(int j = 1; j <= cnt && prime[j] * i <= _; ++j){
vis[i * prime[j]] = 1;
if(i % prime[j] == 0) break;
}
}
}
ll calc(ll l, ll r){return pre[r] - pre[l - 1];}
ll f(ll m){
if(m == 1) return 1;
ll t = calc(m / 2 + 1, m) + 1;
if(t == m) return t == 1 ? 1 : ksm(m, t - 2);
return (m - t) % mod * ksm(m, t - 1) % mod;
}
int main(){
init();
read(n);
ll ans = 1;
for(ll l = 1, r = 0; l <= n; l = r + 1){
r = n / (n / l);
mul(ans, ksm(f(n / l), r - l + 1) % mod);
}
writeln(ans);
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 7ms
memory: 13872kb
input:
4
output:
8
result:
ok answer is '8'
Test #2:
score: 0
Accepted
time: 0ms
memory: 13676kb
input:
2
output:
1
result:
ok answer is '1'
Test #3:
score: 0
Accepted
time: 0ms
memory: 13624kb
input:
123
output:
671840470
result:
ok answer is '671840470'
Test #4:
score: 0
Accepted
time: 3ms
memory: 13868kb
input:
233
output:
353738465
result:
ok answer is '353738465'
Test #5:
score: 0
Accepted
time: 3ms
memory: 14236kb
input:
5981
output:
970246821
result:
ok answer is '970246821'
Test #6:
score: 0
Accepted
time: 7ms
memory: 14460kb
input:
86422
output:
897815688
result:
ok answer is '897815688'
Test #7:
score: 0
Accepted
time: 3ms
memory: 14476kb
input:
145444
output:
189843901
result:
ok answer is '189843901'
Test #8:
score: 0
Accepted
time: 6ms
memory: 13084kb
input:
901000
output:
819449452
result:
ok answer is '819449452'
Test #9:
score: 0
Accepted
time: 7ms
memory: 14540kb
input:
1000000
output:
113573943
result:
ok answer is '113573943'
Test #10:
score: -100
Runtime Error
input:
23333333