Submission #1794378
Source Code Expand
#include<bits/stdc++.h> #define rep(i,a,b) for(int i=a;i<b;i++) #define rrep(i,a,b) for(int i=a;i>=b;i--) #define fore(i,a) for(auto &i:a) #pragma GCC optimize ("-O3") using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); } //--------------------------------------------------------------------------------------------------- vector<int> makePrimes(int n) { vector<int> res, primes(n + 1, 1); primes[0] = primes[1] = 0; rep(i, 2, sqrt(n)) if (primes[i]) for (int j = 0; i * (j + 2) < n; j++) primes[i * (j + 2)] = 0; rep(i, 2, n + 1) if (primes[i]) res.push_back(i); return res; } bool isprime(int v) { if (v == 1) return false; for (int i = 2; 1LL * i*i <= v; i++) if (v%i == 0) return false; return true; } /*--------------------------------------------------------------------------------------------------- ∧_∧ ∧_∧ (´<_` ) Welcome to My Coding Space! ( ´_ゝ`) / ⌒i / \ | | / / ̄ ̄ ̄ ̄/ | __(__ニつ/ _/ .| .|____ \/____/ (u ⊃ ---------------------------------------------------------------------------------------------------*/ int L, R; int A[1010101]; int cnt[1010101]; //--------------------------------------------------------------------------------------------------- void _main() { cin >> L >> R; vector<int> primes = makePrimes(40101); rep(i, L, R + 1) A[i - L] = i; fore(p, primes) { for (int l = (L + p - 1) / p * p; l <= R; l += p) { while (A[l - L] % p == 0) A[l - L] /= p, cnt[l - L]++; } } rep(i, 0, R - L + 1) if (1 < A[i]) cnt[i]++; int ans = 0; rep(i, 0, R - L + 1) { if (isprime(cnt[i]) and 0 < cnt[i]) ans++; } cout << ans << endl; }
Submission Info
Submission Time | |
---|---|
Task | C - Prime-Factor Prime |
User | hamayanhamayan |
Language | C++14 (GCC 5.4.1) |
Score | 100 |
Code Size | 1999 Byte |
Status | AC |
Exec Time | 50 ms |
Memory | 8160 KB |
Judge Result
Set Name | All | ||
---|---|---|---|
Score / Max Score | 100 / 100 | ||
Status |
|
Set Name | Test Cases |
---|---|
All | 00_sample_00, 00_sample_01, 00_sample_02, 00_sample_03, 00_sample_04, 00_sample_05, 10_small_00, 10_small_01, 10_small_02, 10_small_03, 10_small_04, 10_small_05, 10_small_06, 10_small_07, 10_small_08, 10_small_09, 20_medium_00, 20_medium_01, 20_medium_02, 20_medium_03, 20_medium_04, 20_medium_05, 20_medium_06, 20_medium_07, 20_medium_08, 20_medium_09, 30_medium_00, 30_medium_01, 30_medium_02, 30_medium_03, 30_medium_04, 30_medium_05, 30_medium_06, 30_medium_07, 30_medium_08, 30_medium_09, 40_one_00, 40_one_01, 40_one_02, 50_large_low_00, 50_large_low_01, 50_large_low_02, 50_large_low_03, 50_large_low_04, 60_large_high_00, 60_large_high_01, 60_large_high_02, 60_large_high_03, 60_large_high_04, 70_max_low_00, 70_max_low_01, 70_max_low_02, 70_max_low_03, 70_max_low_04, 80_max_high_00, 80_max_high_01, 80_max_high_02, 80_max_high_03, 80_max_high_04 |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
00_sample_00 | AC | 2 ms | 2400 KB |
00_sample_01 | AC | 2 ms | 2400 KB |
00_sample_02 | AC | 4 ms | 4576 KB |
00_sample_03 | AC | 2 ms | 2400 KB |
00_sample_04 | AC | 7 ms | 4832 KB |
00_sample_05 | AC | 50 ms | 8160 KB |
10_small_00 | AC | 2 ms | 2400 KB |
10_small_01 | AC | 2 ms | 2400 KB |
10_small_02 | AC | 2 ms | 2400 KB |
10_small_03 | AC | 2 ms | 2400 KB |
10_small_04 | AC | 2 ms | 2400 KB |
10_small_05 | AC | 2 ms | 2400 KB |
10_small_06 | AC | 2 ms | 2400 KB |
10_small_07 | AC | 2 ms | 2400 KB |
10_small_08 | AC | 2 ms | 2400 KB |
10_small_09 | AC | 2 ms | 2400 KB |
20_medium_00 | AC | 9 ms | 5088 KB |
20_medium_01 | AC | 34 ms | 7008 KB |
20_medium_02 | AC | 27 ms | 6496 KB |
20_medium_03 | AC | 16 ms | 5600 KB |
20_medium_04 | AC | 31 ms | 6752 KB |
20_medium_05 | AC | 22 ms | 6240 KB |
20_medium_06 | AC | 42 ms | 7776 KB |
20_medium_07 | AC | 14 ms | 5472 KB |
20_medium_08 | AC | 40 ms | 7520 KB |
20_medium_09 | AC | 6 ms | 4704 KB |
30_medium_00 | AC | 43 ms | 7776 KB |
30_medium_01 | AC | 21 ms | 5984 KB |
30_medium_02 | AC | 30 ms | 6752 KB |
30_medium_03 | AC | 26 ms | 6496 KB |
30_medium_04 | AC | 41 ms | 7648 KB |
30_medium_05 | AC | 26 ms | 6496 KB |
30_medium_06 | AC | 29 ms | 6624 KB |
30_medium_07 | AC | 10 ms | 5088 KB |
30_medium_08 | AC | 13 ms | 5344 KB |
30_medium_09 | AC | 37 ms | 7136 KB |
40_one_00 | AC | 2 ms | 2400 KB |
40_one_01 | AC | 2 ms | 2400 KB |
40_one_02 | AC | 2 ms | 2400 KB |
50_large_low_00 | AC | 48 ms | 8160 KB |
50_large_low_01 | AC | 49 ms | 8160 KB |
50_large_low_02 | AC | 49 ms | 8160 KB |
50_large_low_03 | AC | 49 ms | 8160 KB |
50_large_low_04 | AC | 49 ms | 8160 KB |
60_large_high_00 | AC | 49 ms | 8160 KB |
60_large_high_01 | AC | 49 ms | 8160 KB |
60_large_high_02 | AC | 49 ms | 8160 KB |
60_large_high_03 | AC | 49 ms | 8160 KB |
60_large_high_04 | AC | 49 ms | 8160 KB |
70_max_low_00 | AC | 49 ms | 8160 KB |
70_max_low_01 | AC | 49 ms | 8160 KB |
70_max_low_02 | AC | 49 ms | 8160 KB |
70_max_low_03 | AC | 50 ms | 8160 KB |
70_max_low_04 | AC | 50 ms | 8160 KB |
80_max_high_00 | AC | 49 ms | 8160 KB |
80_max_high_01 | AC | 50 ms | 8160 KB |
80_max_high_02 | AC | 50 ms | 8160 KB |
80_max_high_03 | AC | 49 ms | 8160 KB |
80_max_high_04 | AC | 49 ms | 8160 KB |