제출 #1083568

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1083568		jay22	친구 (IOI14_friend)	C++14	컴파일 에러	0 ms	0 KiB

friend

#include <algorithm>
 
const int LEN = 1'000'001;
int w[LEN], dp[LEN][2];
 
int findSample(int n, int confidence[], int host[], int protocol[]) {
    for (int i = 0; i < n; ++i) dp[i][1] = confidence[i];
	for (int i = n - 1; i; --i) {
		if (protocol[i] == 0) {
			dp[host[i]][1] += dp[i][0];
			dp[host[i]][0] += std::max(dp[i][0], dp[i][1]);
		}
		if (protocol[i] == 1) {
			dp[host[i]][1] = std::max(dp[host[i]][1] + dp[i][1], dp[host[i]][0] + dp[i][1], dp[host[i]][1] + dp[i][0]);
			dp[host[i]][0] += dp[i][0];
		}
		if (protocol[i] == 2) {
			dp[host[i]][1] = std::max(dp[host[i]][0] + dp[i][1], dp[host[i]][1] + dp[i][0]);
			dp[host[i]][0] += dp[i][0];
		}
	}
    return std::max(dp[0][0], dp[0][1] + w[0]);
}

컴파일 시 표준 에러 (stderr) 메시지

In file included from /usr/include/c++/10/algorithm:61,
                 from friend.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h: In instantiation of 'constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) [with _Tp = int; _Compare = int]':
friend.cpp:14:109:   required from here
/usr/include/c++/10/bits/stl_algobase.h:303:17: error: '__comp' cannot be used as a function
  303 |       if (__comp(__a, __b))
      |           ~~~~~~^~~~~~~~~~