Submission #1045070

#	Time	Username	Problem	Language	Result	Execution time	Memory
1045070		wood	Mechanical Doll (IOI18_doll)	C++17	0 / 100	17 ms	7448 KiB

doll

#include "doll.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
void create_circuit(int M, std::vector<int> A) {
	int N = A.size();
	std::vector<int> C(M + 1);
	vector<int> adj[M];
	for(int i = 0; i<N; i++){
		if(i<N-1)
		adj[A[i]-1].pb(A[i+1]);
		else adj[A[i]-1].pb(0);
	}
	vector<int> res(M+1), x, y;
	bool done[M]; memset(done,0,sizeof done);
	int switchcnt = 0;
	res[0] = A[0];
	for(int i = 0; i<N; i++){
		if(done[A[i]-1]) continue;
		done[A[i]-1] = true;
		if(adj[i].size()==1) res[A[i]] = adj[A[i]-1][0];
		if(adj[i].size()==2){
			res[A[i]] = -switchcnt-1;
			switchcnt++;
			x.pb(adj[i][0]);
			y.pb(adj[i][1]);
		}
	}
	answer(res,x,y);
}

Compilation message (stderr)

In file included from /usr/include/string.h:495,
                 from /usr/include/c++/10/cstring:42,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:48,
                 from doll.cpp:2:
In function 'void* memset(void*, int, size_t)',
    inlined from 'void create_circuit(int, std::vector<int>)' at doll.cpp:15:22:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:71:33: warning: 'void* __builtin_memset(void*, int, long unsigned int)' specified bound 18446744073709551615 exceeds maximum object size 9223372036854775807 [-Wstringop-overflow=]
   71 |   return __builtin___memset_chk (__dest, __ch, __len, __bos0 (__dest));
      |          ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 18
• Subtask 6: 0 / 56