Submission #2362484
Source Code Expand
#include <iostream> #include <string> char FLIP[2][128]; std::string solve(std::string S, unsigned K) { unsigned N = S.size(); unsigned steps = 0, flips = 0, i = 0; for (; i < N && steps < K; ++steps) { if (S[i] == FLIP[flips % 2]['A']) { S[i] = FLIP[flips % 2]['B']; } else { ++i; ++flips; } } if (N % 2 == 1 && i == N) { flips += K - steps; } std::string T(N, '\0'); for (unsigned j = 0; j < N; ++j) { if (i < N) { T[j] = FLIP[flips % 2][S[i++]]; } else { unsigned f = j == 0 ? flips + 1 : N - j + 1; T[j] = FLIP[f % 2]['A']; } } return T; } int main() { std::ios::sync_with_stdio(false); FLIP[0]['A'] = 'A'; FLIP[0]['B'] = 'B'; FLIP[1]['A'] = 'B'; FLIP[1]['B'] = 'A'; for (unsigned N, K; std::cin >> N >> K;) { std::string S; std::cin >> S; std::cout << solve(S, K) << '\n'; } }
Submission Info
Submission Time | |
---|---|
Task | D - Half Reflector |
User | vjudge1 |
Language | C++14 (GCC 5.4.1) |
Score | 900 |
Code Size | 1025 Byte |
Status | AC |
Exec Time | 4 ms |
Memory | 1176 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 900 / 900 | ||||
Status |
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Set Name | Test Cases |
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Sample | sample1.txt, sample2.txt, sample3.txt |
All | sample1.txt, sample2.txt, sample3.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in2.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in3.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, in35.txt, in36.txt, in37.txt, in38.txt, in39.txt, in4.txt, in40.txt, in41.txt, in42.txt, in5.txt, in543.txt, in557.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt, sample3.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
in1.txt | AC | 1 ms | 256 KB |
in10.txt | AC | 3 ms | 1172 KB |
in11.txt | AC | 4 ms | 1172 KB |
in12.txt | AC | 3 ms | 1172 KB |
in13.txt | AC | 3 ms | 1172 KB |
in14.txt | AC | 4 ms | 1172 KB |
in15.txt | AC | 3 ms | 1172 KB |
in16.txt | AC | 3 ms | 1172 KB |
in17.txt | AC | 3 ms | 1172 KB |
in18.txt | AC | 3 ms | 1172 KB |
in19.txt | AC | 2 ms | 1172 KB |
in2.txt | AC | 2 ms | 720 KB |
in20.txt | AC | 3 ms | 1172 KB |
in21.txt | AC | 3 ms | 1172 KB |
in22.txt | AC | 4 ms | 1172 KB |
in23.txt | AC | 4 ms | 1172 KB |
in24.txt | AC | 4 ms | 1172 KB |
in25.txt | AC | 4 ms | 1172 KB |
in26.txt | AC | 4 ms | 1172 KB |
in27.txt | AC | 4 ms | 1172 KB |
in28.txt | AC | 3 ms | 1172 KB |
in29.txt | AC | 3 ms | 1172 KB |
in3.txt | AC | 3 ms | 1172 KB |
in30.txt | AC | 3 ms | 1172 KB |
in31.txt | AC | 3 ms | 1172 KB |
in32.txt | AC | 3 ms | 1172 KB |
in33.txt | AC | 3 ms | 1172 KB |
in34.txt | AC | 3 ms | 1172 KB |
in35.txt | AC | 4 ms | 1172 KB |
in36.txt | AC | 4 ms | 1172 KB |
in37.txt | AC | 4 ms | 1172 KB |
in38.txt | AC | 4 ms | 1172 KB |
in39.txt | AC | 3 ms | 1172 KB |
in4.txt | AC | 4 ms | 1172 KB |
in40.txt | AC | 3 ms | 1172 KB |
in41.txt | AC | 3 ms | 1172 KB |
in42.txt | AC | 3 ms | 1172 KB |
in5.txt | AC | 4 ms | 1176 KB |
in543.txt | AC | 2 ms | 1172 KB |
in557.txt | AC | 2 ms | 1172 KB |
in6.txt | AC | 1 ms | 256 KB |
in7.txt | AC | 3 ms | 1172 KB |
in8.txt | AC | 4 ms | 1172 KB |
in9.txt | AC | 3 ms | 1172 KB |
sample1.txt | AC | 1 ms | 256 KB |
sample2.txt | AC | 1 ms | 256 KB |
sample3.txt | AC | 1 ms | 256 KB |