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ndb796
python-for-coding-test
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#include <bits/stdc++.h>
using namespace std;
int solution(int n, vector<int> weak, vector<int> dist) {
// 길이를 2배로 늘려서 '원형'을 일자 형태로 변경
int length = weak.size();
for (int i = 0; i < length; i++) {
weak.push_back(weak[i] + n);
}
// 투입할 친구 수의 최솟값을 찾아야 하므로 len(dist) + 1로 초기화
int answer = dist.size() + 1;
// 0부터 length - 1까지의 위치를 각각 시작점으로 설정
for (int start = 0; start < length; start++) {
// 친구를 나열하는 모든 경우 각각에 대하여 확인
do {
int cnt = 1; // 투입할 친구의 수
// 해당 친구가 점검할 수 있는 마지막 위치
int position = weak[start] + dist[cnt - 1];
// 시작점부터 모든 취약한 지점을 확인
for (int index = start; index < start + length; index++) {
// 점검할 수 있는 위치를 벗어나는 경우
if (position < weak[index]) {
cnt += 1; // 새로운 친구를 투입
if (cnt > dist.size()) { // 더 투입이 불가능하다면 종료
break;
}
position = weak[index] + dist[cnt - 1];
}
}
answer = min(answer, cnt); // 최솟값 계산
} while(next_permutation(dist.begin(), dist.end()));
}
if (answer > dist.size()) {
return -1;
}
return answer;
}
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