結果
| 問題 | No.577 Prime Powerful Numbers |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2018-04-21 15:54:31 |
| 言語 | C++14 (gcc 15.2.0 + boost 1.89.0) |
| 結果 |
CE
(最新)
AC
(最初)
|
| 実行時間 | - |
| コード長 | 2,499 bytes |
| 記録 | |
| コンパイル時間 | 445 ms |
| コンパイル使用メモリ | 78,128 KB |
| 最終ジャッジ日時 | 2026-03-14 12:40:29 |
| 合計ジャッジ時間 | 954 ms |
|
ジャッジサーバーID (参考情報) |
judge3_0 / judge1_0 |
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コンパイルエラー時のメッセージ・ソースコードは、提出者また管理者しか表示できないようにしております。(リジャッジ後のコンパイルエラーは公開されます)
ただし、clay言語の場合は開発者のデバッグのため、公開されます。
ただし、clay言語の場合は開発者のデバッグのため、公開されます。
コンパイルメッセージ
main.cpp:7:14: error: 'uint64_t' was not declared in this scope
7 | bool is_SPRP(uint64_t n, uint64_t a) {
| ^~~~~~~~
main.cpp:5:1: note: 'uint64_t' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
4 | #include <functional>
+++ |+#include <cstdint>
5 | using namespace std;
main.cpp:7:26: error: 'uint64_t' was not declared in this scope
7 | bool is_SPRP(uint64_t n, uint64_t a) {
| ^~~~~~~~
main.cpp:7:26: note: 'uint64_t' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
main.cpp:7:36: error: expression list treated as compound expression in initializer [-fpermissive]
7 | bool is_SPRP(uint64_t n, uint64_t a) {
| ^
main.cpp:19:15: error: 'uint64_t' was not declared in this scope
19 | bool is_prime(uint64_t x) {
| ^~~~~~~~
main.cpp:19:15: note: 'uint64_t' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
main.cpp: In function 'bool is_prime_exponentiation(long int)':
main.cpp:50:30: error: 'is_prime' cannot be used as a function
50 | }else if(is_prime(middle)){
| ~~~~~~~~^~~~~~~~
ソースコード
#include <iostream>
#include <algorithm>
#include <vector>
#include <functional>
using namespace std;
bool is_SPRP(uint64_t n, uint64_t a) {
uint64_t s = __builtin_ctzll(n - 1), d = (n - 1) >> s, cur = 1;
for (uint64_t pw = d; pw; pw >>= 1) {
if (pw & 1) cur = ((__uint128_t)cur * a) % n;
a = ((__uint128_t)a * a) % n;
}
if (cur == 1) return true;
for (; s--; cur = ((__uint128_t)cur * cur) % n)
if (cur == n - 1) return true;
return false;
}
bool is_prime(uint64_t x) {
if (x <= 1) return false;
vector<uint64_t> bases{2, 325, 9375, 28178, 450775, 9780504, 1795265022};
if (x < 1ull << 32) bases = {2, 7, 61};
for (const uint64_t base : bases)
if (x != base && !is_SPRP(x, base)) return false;
return true;
}
long power(long base, int exponent){
long ans = 1;
for(int i = 0; i < exponent; i++){
if(ans > 6e18 / base){
return 2e18;
}
ans *= base;
}
return ans;
}
bool is_prime_exponentiation(long X){
for(int i = 1; i < 100; i++){
long left = 1, right = 2e18; // [left, right]
while(left <= right){
long middle = (left + right) / 2;
long power_num = power(middle, i);
if(power_num > X){
right = middle - 1;
}else if(power_num < X){
left = middle + 1;
}else if(is_prime(middle)){
return true;
}else{
break;
}
}
}
return false;
}
bool testcase(long N){
if(N == 2){
return false;
}else if(N % 2 == 0){
return true;
}
for(long i = 2; i < N; i *= 2){
for(int j = 1; j < 2; j++){
long left = 1, right = 2e18; // [left, right]
while(left <= right){
long middle = (left + right) / 2;
long power_num = power(middle, j);
if(power_num > N - i){
right = middle - 1;
}else if(power_num < N - i){
left = middle + 1;
}else if(is_prime_exponentiation(middle)){
return true;
}else{
break;
}
}
}
}
return false;
}
int main(){
int Q;
cin >> Q;
for(int i = 0; i < Q; i++){
long N;
cin >> N;
if(testcase(N)){
cout << "Yes" << endl;
}else{
cout << "No" << endl;
}
}
}