Submission #536667
Source Code Expand
#include <iostream> #include <cstring> int N, a; int b[100000]; int ts[100000]; std::string K; int main(){ std::cin >> N >> a; --a; std::cin >> K; for(int i=0;i<N;i++){ std::cin >> b[i]; --b[i]; } if(K.size() < 7){ int k = std::stoi(K); for(int i=0;i<k;i++){ a = b[a]; } std::cout << a+1 << std::endl; return 0; } memset(ts, -1, sizeof(ts)); int t = 0; for(;ts[a]==-1;){ ts[a] = t; ++t; // printf("%d -> %d\n", a, b[a]); a = b[a]; } // for(int i=0;i<N;i++){ // printf("%d\n", ts[i]); // } int mod = t - ts[a], k = 0; // printf("%d, %d\n", mod, k); for(char& c : K){ k = (k * 10 + c - '0') % mod; } k = ((k - ts[a]) % mod + mod) % mod; for(;k>0;k--){ a = b[a]; } std::cout << a+1 << std::endl; }
Submission Info
Submission Time | |
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Task | D - へんてこ辞書 |
User | iwashisnake |
Language | C++11 (GCC 4.9.2) |
Score | 100 |
Code Size | 999 Byte |
Status | AC |
Exec Time | 80 ms |
Memory | 1700 KB |
Judge Result
Set Name | Sample | Subtask1 | All | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 50 / 50 | 50 / 50 | ||||||
Status |
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Set Name | Test Cases |
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Sample | subtask0_sample_01.txt, subtask0_sample_03.txt |
Subtask1 | subtask0_0.txt, subtask0_1.txt, subtask0_2.txt, subtask0_3.txt, subtask0_4.txt, subtask0_5.txt, subtask0_6.txt, subtask0_7.txt, subtask0_8.txt, subtask0_9.txt, subtask0_sample_01.txt, subtask0_sample_03.txt |
All | subtask0_0.txt, subtask0_1.txt, subtask0_2.txt, subtask0_3.txt, subtask0_4.txt, subtask0_5.txt, subtask0_6.txt, subtask0_7.txt, subtask0_8.txt, subtask0_9.txt, subtask0_sample_01.txt, subtask0_sample_03.txt, subtask1_0.txt, subtask1_1.txt, subtask1_10.txt, subtask1_11.txt, subtask1_2.txt, subtask1_3.txt, subtask1_4.txt, subtask1_5.txt, subtask1_6.txt, subtask1_7.txt, subtask1_8.txt, subtask1_9.txt, subtask1_sample_02.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
subtask0_0.txt | AC | 71 ms | 1436 KB |
subtask0_1.txt | AC | 60 ms | 1444 KB |
subtask0_2.txt | AC | 65 ms | 1436 KB |
subtask0_3.txt | AC | 57 ms | 1312 KB |
subtask0_4.txt | AC | 71 ms | 1444 KB |
subtask0_5.txt | AC | 61 ms | 1444 KB |
subtask0_6.txt | AC | 56 ms | 1364 KB |
subtask0_7.txt | AC | 65 ms | 1448 KB |
subtask0_8.txt | AC | 56 ms | 1316 KB |
subtask0_9.txt | AC | 70 ms | 1440 KB |
subtask0_sample_01.txt | AC | 26 ms | 924 KB |
subtask0_sample_03.txt | AC | 24 ms | 800 KB |
subtask1_0.txt | AC | 61 ms | 1564 KB |
subtask1_1.txt | AC | 68 ms | 1688 KB |
subtask1_10.txt | AC | 80 ms | 1700 KB |
subtask1_11.txt | AC | 25 ms | 1104 KB |
subtask1_2.txt | AC | 60 ms | 1444 KB |
subtask1_3.txt | AC | 56 ms | 1448 KB |
subtask1_4.txt | AC | 59 ms | 1448 KB |
subtask1_5.txt | AC | 73 ms | 1620 KB |
subtask1_6.txt | AC | 59 ms | 1572 KB |
subtask1_7.txt | AC | 58 ms | 1572 KB |
subtask1_8.txt | AC | 77 ms | 1568 KB |
subtask1_9.txt | AC | 78 ms | 1700 KB |
subtask1_sample_02.txt | AC | 26 ms | 1184 KB |