제출 #1083167

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1083167		Math4Life2020	고대 책들 (IOI17_books)	C++17	컴파일 에러	0 ms	0 KiB

books

#include <bits/stdc++.h>
using namespace std;

using ll = long long; using pii = pair<ll,ll>;

ll minimum_walk(int p[], int s) {
	ll N = sizeof(p);
	assert(s==0);
	ll ans = 0;
	bool found[N];
	for (ll i=0;i<N;i++) {
		found[i]=0;
	}
	ll D = 0;
	for (ll i=0;i<N;i++) {
		if (!found[i]) {
			ll j = i;
			ll dmin = 1e8;
			do {
				found[j]=1;
				dmin = min(dmin,j);
				ans += abs(p[j]-j);
				j = p[j];
			} while (j != i);
			D = max(D,dmin);
		}
	}
	ans -= 2*D;
	return ans;
}

int main() {
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

books.cpp: In function 'll minimum_walk(int*, int)':
books.cpp:7:16: warning: 'sizeof' on array function parameter 'p' will return size of 'int*' [-Wsizeof-array-argument]
    7 |  ll N = sizeof(p);
      |               ~^~
books.cpp:6:21: note: declared here
    6 | ll minimum_walk(int p[], int s) {
      |                 ~~~~^~~
/usr/bin/ld: /tmp/ccpgVWxi.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccmfhaHh.o:books.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccpgVWxi.o: in function `main':
grader.cpp:(.text.startup+0x266): undefined reference to `minimum_walk(std::vector<int, std::allocator<int> >, int)'
collect2: error: ld returned 1 exit status