結果
問題 | No.8030 ミラー・ラビン素数判定法のテスト |
ユーザー | Ryuhei Mori |
提出日時 | 2017-10-28 00:28:34 |
言語 | C (gcc 12.3.0) |
結果 |
AC
|
実行時間 | 27 ms / 9,973 ms |
コード長 | 3,199 bytes |
コンパイル時間 | 184 ms |
コンパイル使用メモリ | 31,616 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-11-16 23:03:49 |
合計ジャッジ時間 | 834 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
5,248 KB |
testcase_01 | AC | 1 ms
5,248 KB |
testcase_02 | AC | 1 ms
5,248 KB |
testcase_03 | AC | 1 ms
5,248 KB |
testcase_04 | AC | 19 ms
5,248 KB |
testcase_05 | AC | 19 ms
5,248 KB |
testcase_06 | AC | 10 ms
5,248 KB |
testcase_07 | AC | 9 ms
5,248 KB |
testcase_08 | AC | 10 ms
5,248 KB |
testcase_09 | AC | 27 ms
5,248 KB |
ソースコード
#include <unistd.h> #include <stdint.h> typedef __int128 int128_t; typedef unsigned __int128 uint128_t; char ibuf[300000]; char *ibufe = ibuf-1; char buf[300000]; char *bufe = buf; static inline void readall(){ int k, t = 0; while((k=read(STDIN_FILENO, ibuf+t, sizeof(ibuf)-t))>0) t += k; } static inline uint64_t read_uintll(){ uint64_t x=0; while(*(++ibufe) <'0'); do { x *= 10; x += *ibufe-'0'; } while(*(++ibufe) >='0'); return x; } static inline uint64_t readwrite_uintll(){ uint64_t x=0; while(*(++ibufe) <'0'); do { x *= 10; x += *ibufe-'0'; *bufe++ = *ibufe; } while(*(++ibufe) >='0'); *bufe++ = ' '; return x; } static inline void write_bitln(int x){ *bufe++ = '0'+x; *bufe++ = '\n'; } static inline void writeall(){ int k, t = 0; while((k=write(STDOUT_FILENO, buf+t, bufe-buf-t))>0) t += k; } static inline uint64_t ex_gcd(uint64_t y){ int i; uint64_t u, v; u = 1; v = 0; uint64_t x = 1LL<<63; for(i=0;i<64;i++){ if(u&1){ u = (u + y) / 2; v = v/2 + x; } else { u >>= 1; v >>= 1; } } return v; } static inline uint64_t MR(uint128_t x, uint64_t m, uint64_t n){ uint64_t z = ((uint128_t) ((uint64_t) x * m) * n + x) >> 64; return z < n ? z : z - n; } static inline uint64_t RM(uint64_t x, uint64_t r2, uint64_t m, uint64_t n){ return MR((uint128_t) r2 * x, m, n); } static inline uint64_t modpow64(uint64_t a, uint64_t k, uint64_t m, uint64_t n){ uint64_t r; for(r=a,--k;k;k/=2){ if(k&1) r = MR((uint128_t)r*a, m, n); a = MR((uint128_t) a*a, m, n); } return r; } static inline uint32_t modpow32(uint32_t a, uint32_t k, uint32_t n){ uint32_t r; for(r=1;k;k/=2){ if(k&1) r = (uint64_t)r*a%n; a = (uint64_t) a*a%n; } return r; } int is_prime32(uint32_t n){ static const uint32_t as32[] = {2, 7, 61}; int i, j, r; uint32_t d; if(n <= 1) return 0; if(n <= 3) return 1; if(!(n & 1)) return 0; r = __builtin_ctz(n-1); d = (n-1) >> r; for(i=0;i<3;i++){ uint32_t a = as32[i] % n; if(a == 0) return 1; uint32_t t = modpow32(a, d, n); if(t == 1) continue; for(j=0;t!=n-1;j++){ if(j == r-1) return 0; t = (uint64_t) t * t % n; if(t == 1) return 0; } } return 1; } int is_prime64(uint64_t n){ static const uint64_t as64[] = {2, 325, 9375, 28178, 450775, 9780504, 1795265022}; int i, j, r; uint64_t d, one, mone, r2, m; if(n <= 1) return 0; if(n <= 3) return 1; if(!(n & 1)) return 0; if(n < (1LL << 32)) return is_prime32(n); r = __builtin_ctzll(n-1); d = (n-1) >> r; m = ex_gcd(n); one = -1ULL % n + 1; mone = n - one; r2 = (uint128_t) (int128_t) -1 % n + 1; for(i=0;i<7;i++){ uint64_t a = RM(as64[i], r2, m, n); if(a == 0) return 1; uint64_t t = modpow64(a, d, m, n); if(t == one) continue; for(j=0;t!=mone;j++){ if(j == r-1) return 0; t = MR((uint128_t) t * t, m, n); // if(t == one) return 0; } } return 1; } int main(){ int i, n; readall(); n = read_uintll(); for(i=0;i<n;i++){ uint64_t x; x = readwrite_uintll(); write_bitln(is_prime64(x)); } writeall(); return 0; }