Submission #1112305

#	Time	Username	Problem	Language	Result	Execution time	Memory
1112305		thelegendary08	Mechanical Doll (IOI18_doll)	C++17	16 / 100	71 ms	13500 KiB

doll

#include "doll.h"
#include<bits/stdc++.h>
#define vi vector<int>
#define pb push_back
#define vvi vector<vector<int>>
#define f0r(i,n) for(int i = 0; i<n; i++)
using namespace std;
void create_circuit(int M, std::vector<int> A) {
	vi v;
	v.pb(0);
	for(auto u : A)v.pb(u);
	v.pb(0);
	vvi nxt(M+1);
	f0r(i, v.size() - 1){
		nxt[v[i]].pb(v[i+1]);
	}
	int num = -1;
	vi c(M+1);
	vi x;
	vi y;
	f0r(i, M+1){
		if(nxt[i].size() == 1){
			c[i] = nxt[i][0];
		}
		else if(nxt[i].size() == 2){
			c[i] = num;
			x.pb(nxt[i][0]);
			y.pb(nxt[i][1]);
			num--;
		}
		else if(nxt[i].size() == 3){
			c[i] = num;
			x.pb(num-1);
			y.pb(num - 2);
			num--;
			x.pb(nxt[i][0]);
			y.pb(nxt[i][1]);
			num--;
			x.pb(c[i]);
			y.pb(nxt[i][2]);
			num--;
		}
		else if(nxt[i].size() == 4){
			c[i] = num;
			x.pb(num-1);
			y.pb(num - 2);
			num--;
			x.pb(nxt[i][0]);
			y.pb(nxt[i][2]);
			num--;
			x.pb(nxt[i][1]);
			y.pb(nxt[i][3]);
			num--;
		}
	}
	
	answer(c,x,y);
}

Compilation message (stderr)

doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:6:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    6 | #define f0r(i,n) for(int i = 0; i<n; i++)
......
   14 |  f0r(i, v.size() - 1){
      |      ~~~~~~~~~~~~~~~              
doll.cpp:14:2: note: in expansion of macro 'f0r'
   14 |  f0r(i, v.size() - 1){
      |  ^~~

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