結果
問題 | No.308 素数は通れません |
ユーザー | moti |
提出日時 | 2015-12-02 01:19:42 |
言語 | C++11 (gcc 11.4.0) |
結果 |
RE
|
実行時間 | - |
コード長 | 3,946 bytes |
コンパイル時間 | 1,259 ms |
コンパイル使用メモリ | 122,720 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-09-14 07:42:46 |
合計ジャッジ時間 | 16,495 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 1 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 1 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 1 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | RE | - |
testcase_15 | RE | - |
testcase_16 | RE | - |
testcase_17 | RE | - |
testcase_18 | RE | - |
testcase_19 | RE | - |
testcase_20 | RE | - |
testcase_21 | RE | - |
testcase_22 | RE | - |
testcase_23 | RE | - |
testcase_24 | RE | - |
testcase_25 | RE | - |
testcase_26 | RE | - |
testcase_27 | RE | - |
testcase_28 | RE | - |
testcase_29 | RE | - |
testcase_30 | RE | - |
testcase_31 | RE | - |
testcase_32 | RE | - |
testcase_33 | RE | - |
testcase_34 | RE | - |
testcase_35 | RE | - |
testcase_36 | RE | - |
testcase_37 | RE | - |
testcase_38 | RE | - |
testcase_39 | RE | - |
testcase_40 | RE | - |
testcase_41 | RE | - |
testcase_42 | RE | - |
testcase_43 | RE | - |
testcase_44 | RE | - |
testcase_45 | RE | - |
testcase_46 | RE | - |
testcase_47 | RE | - |
testcase_48 | RE | - |
testcase_49 | RE | - |
testcase_50 | RE | - |
testcase_51 | RE | - |
testcase_52 | RE | - |
testcase_53 | RE | - |
testcase_54 | RE | - |
testcase_55 | RE | - |
testcase_56 | RE | - |
testcase_57 | RE | - |
testcase_58 | RE | - |
testcase_59 | RE | - |
testcase_60 | RE | - |
testcase_61 | RE | - |
testcase_62 | RE | - |
testcase_63 | RE | - |
testcase_64 | RE | - |
testcase_65 | RE | - |
testcase_66 | RE | - |
testcase_67 | RE | - |
testcase_68 | RE | - |
testcase_69 | RE | - |
testcase_70 | RE | - |
testcase_71 | RE | - |
testcase_72 | RE | - |
testcase_73 | RE | - |
testcase_74 | RE | - |
testcase_75 | RE | - |
testcase_76 | RE | - |
testcase_77 | RE | - |
testcase_78 | RE | - |
testcase_79 | RE | - |
testcase_80 | RE | - |
testcase_81 | RE | - |
testcase_82 | RE | - |
testcase_83 | RE | - |
testcase_84 | RE | - |
testcase_85 | RE | - |
testcase_86 | RE | - |
testcase_87 | RE | - |
testcase_88 | RE | - |
testcase_89 | RE | - |
testcase_90 | RE | - |
testcase_91 | RE | - |
testcase_92 | RE | - |
testcase_93 | RE | - |
testcase_94 | RE | - |
testcase_95 | RE | - |
testcase_96 | RE | - |
testcase_97 | RE | - |
testcase_98 | RE | - |
testcase_99 | RE | - |
testcase_100 | RE | - |
testcase_101 | RE | - |
testcase_102 | RE | - |
testcase_103 | RE | - |
testcase_104 | RE | - |
testcase_105 | RE | - |
testcase_106 | RE | - |
ソースコード
#include <iostream> #include <algorithm> #include <cmath> #include <vector> #include <complex> #include <queue> #include <deque> #include <set> #include <map> #include <unordered_set> #include <unordered_map> #include <iomanip> #include <assert.h> #include <array> #include <cstdio> #include <cstring> #include <random> #include <functional> #include <numeric> #include <bitset> using namespace std; #define REP(i,a,b) for(int i=a;i<(int)b;i++) #define rep(i,n) REP(i,0,n) #define all(c) (c).begin(), (c).end() #define zero(a) memset(a, 0, sizeof a) #define minus(a) memset(a, -1, sizeof a) #define minimize(a, x) a = std::min(a, x) #define maximize(a, x) a = std::max(a, x) typedef long long ll; int const inf = 1<<29; typedef __int128_t INT; INT N; bool miller_rabin_primality_test(INT p,INT iteration){ auto modulo=[](INT a,INT b,INT c){ INT res = 1; for(INT i=0;i<b;i++){ res *= a; res %= c; } return res%c; }; auto mulmod = [](INT a,INT b,INT c){ INT x = 0,y=a%c; while(b > 0){ if(b%2 == 1){ x = (x+y)%c; } y = (y*2)%c; b /= 2; } return x%c; }; if(p<2){ return false; } if(p!=2 && p%2==0){ return false; } INT s=p-1; while(s%2==0){ s/=2; } for(INT i=0;i<iteration;i++){ INT a=rand()%(p-1)+1,temp=s; INT mod=modulo(a,temp,p); while(temp!=p-1 && mod!=1 && mod!=p-1){ mod=mulmod(mod,mod,p); temp *= 2; } if(mod!=p-1 && temp%2==0){ return false; } } return true; } map<INT, int> mp = { {4,3}, {6,5}, {8,7}, {9,7}, {10,7}, {12,11}, {14,13}, {15,7}, {16,7}, {18,8}, {20,19}, {21,19}, {22,7}, {24,23}, }; vector<int> wlist = {8, 14, 17, 19, 20, 23, 24, 26, 27, 31, 32, 33, 34, 37, 38, 44, 45, 47, 48, 50, 53, 54, 56, 57, 59, 61, 62, 63, 64, 67, 68, 71, 73, 74, 75, 76, 77, 79, 80, 83, 84, 85, 86, 87, 89, 90, 91, 92, 93, 94, 98, 101, 103, 104, 107, 109, 110, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 128, 129, 131, 132, 133, 134, 137, 139, 140, 141, 142, 144, 145, 146, 147, 152, 153, 154, 157, 158, 159, 160, 161, 164, 168, 169, 170, 173, 174, 175, 176, 177, 182, 183, 184, 185, 186, 187, 188, 193, 194, 195, 197, 199, 200, 202, 204, 206, 207, 208, 212, 213, 214, 215, 216, 218, 220, 224, 230, 234, 236, 237, 242, 243, 244, 245, 246, 248, 254, 260, 266, 272, 274, 278, 284, 286, 290, 296, 298, 302, 304, 308, 314, 318, 320, 321, 322, 324, 326, 327, 328, 331, 332, 333, 334, 338, 340, 350, 356, 362, 364, 368, 374, 376, 380, 386, 392, 394, 398, 404, 406, 410, 412, 416, 422, 424, 434, 436, 446, 452, 464, 470, 472, 476, 482, 488, 494, 496, 499, 997, 998, 999 }; INT dx[4] = {-1,0,1,0}; INT dy[4] = {0,-1,0,1}; bool bfs(INT W, INT s) { queue<INT> q; set<INT> vis; q.push(s); vis.clear(); vis.insert(s); while(!q.empty()) { if(vis.size() > 20) { return true; } INT p = q.front(); q.pop(); if(s == 0 && p == N-1) { return true; } if(s == N-1 && p == 0) { return true; } INT x = p % W, y = p / W; rep(i, 4) { INT nx = x + dx[i], ny = y + dy[i]; if(nx<0 || W<=nx || ny<0) { continue; } if(ny*W+nx>=N) { continue; } if(miller_rabin_primality_test(ny*W+nx + 1, 10)) { continue; } if(vis.count(ny*W+nx)) { continue; } vis.insert(ny*W+nx); q.push(ny*W+nx); } } return vis.size() > 20 || vis.count(s == 0 ? N-1 : 0); } int main() { string s; cin >> s; INT N = 0; rep(i, s.size()) { N *= 10; N += s[i] - '0'; } if(mp.find(N) != mp.end()) { cout << mp[N] << endl; exit(0); } /* if((N-1) % 8 == 1 && miller_rabin_primality_test(N-8, 100)) { cout << 14 << endl; } else { cout << 8 << endl; } */ int idx = 0; while(!bfs(wlist[idx], 0) || !bfs(wlist[idx], N-1)) { idx++; } if(idx >= wlist.size()) { cout << 14 << endl; } else { cout << wlist[idx] << endl; } return 0; }