답안 #911477

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
911477 2024-01-19T01:54:45 Z biank 자동 인형 (IOI18_doll) C++14
16 / 100
112 ms 19036 KB
#include <bits/stdc++.h>
#include "doll.h"
using namespace std;
#define SIZE(x) (int)x.size()
#define forn(i,n) for(int i=0;i<int(n);i++)
#define forsn(i,s,n) for(int i=int(s);i<int(n);i++)
#define pb push_back
typedef vector<int> vi;
     
vi L, R, v, state;
int t=1, skip, s=-1;
     
void build(int u, int l, int r) {
    L.pb(0), R.pb(0), v.pb(0);
    assert(u>=0 && u<SIZE(v));
    if(l>r) {
        v[u]=-1;
        return;
    }
    if(skip>0 && r-l+1<=skip) {
        v[u]=-1;
        skip-=r-l+1;
        return;
    }
    if(l==r) return;
    v[u] = s--;
    int m=(l+r)/2;
    L[u] = t++;
    build(L[u], l, m);
    R[u] = t++;
    build(R[u], m+1, r);
}
     
bool dfs(int u, int a) {
    assert(u>=0 && u<SIZE(v));
    if(u!=0 && v[u]==-1) return false;
    if(!v[u]) {
        v[u]=a;
        return true;
    }
    state[u]^=1;
    assert(v[L[u]]!=-1 || v[R[u]]!=-1);
    if(state[u]) return dfs(L[u],a);
    return dfs(R[u],a);
}
     
bool first_subtasks(int m, vi &a) {
    vi c(m+1);
    vi x,y;

    map<int,vi> next;
    int n=SIZE(a);
    a.pb(0);
    forn(i,n) next[a[i]].pb(a[i+1]);
	
	c[0]=a[0];
	int j=0;
    for(auto &p:next) {
        auto [a,v] = p;
		int S=SIZE(v);
		if(S==1) {
			c[a] = v[0];
		} else if(S==2) {
			c[a] = --j;
			x.pb(v[0]);
			y.pb(v[1]);
			continue;
		} else if(S==4) {
			c[a] = --j;
			x.pb(--j);
			y.pb(--j);
			x.pb(v[0]);
			y.pb(v[2]);
			x.pb(v[1]);
			y.pb(v[3]);
			continue;
		} else if(S==3) {
			c[a] = --j;
			x.pb(--j);
			y.pb(--j);
			x.pb(v[0]);
			y.pb(v[1]);
			x.pb(j+2);
			y.pb(v[2]);
		} else {
            return false;
        }
	}
    answer(c,x,y);
    return true;
}

void create_circuit(int m, vi A) {
    if(first_subtasks(m,A)) return;
    vi c(m+1);
    c[0]=A[0];
    forsn(i,1,m+1) c[i]=-1;
    int n=SIZE(A), sz=1;
    while(sz<n) sz*=2;
    assert(sz>=n);
    skip = sz-n;
    build(0,1,sz);
    assert(SIZE(L)==SIZE(R) && SIZE(v)==SIZE(L));
    vi a;
    forsn(i,1,n) a.pb(A[i]);
    a.pb(0);
    state.assign(SIZE(v),0);
    forn(i,n) {
        bool flag=0;
        while(!flag) flag=dfs(0,a[i]);
    }
    vi x, y;
    int mini=-1;
    forn(i,SIZE(v)) {
        if(L[i] && R[i]) {
            x.pb(v[L[i]]);
            y.pb(v[R[i]]);
            mini=min({mini,v[L[i]],v[R[i]]});
        }
    }
    if(SIZE(x)<-mini) {
        x.resize(-mini,-1);
        y.resize(-mini,-1);
    }
    answer(c,x,y);
}

Compilation message

doll.cpp: In function 'bool first_subtasks(int, vi&)':
doll.cpp:59:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   59 |         auto [a,v] = p;
      |              ^
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 38 ms 9152 KB Output is correct
3 Correct 35 ms 8792 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 7 ms 1368 KB Output is correct
6 Correct 61 ms 13260 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 38 ms 9152 KB Output is correct
3 Correct 35 ms 8792 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 7 ms 1368 KB Output is correct
6 Correct 61 ms 13260 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 64 ms 12400 KB Output is correct
9 Correct 80 ms 14388 KB Output is correct
10 Correct 112 ms 19036 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 38 ms 9152 KB Output is correct
3 Correct 35 ms 8792 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 7 ms 1368 KB Output is correct
6 Correct 61 ms 13260 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 64 ms 12400 KB Output is correct
9 Correct 80 ms 14388 KB Output is correct
10 Correct 112 ms 19036 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 106 ms 16644 KB Output is correct
15 Correct 58 ms 9672 KB Output is correct
16 Correct 95 ms 12984 KB Output is correct
17 Correct 0 ms 432 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 109 ms 16504 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 348 KB state 'Y'
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB state 'Y'
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB state 'Y'
2 Halted 0 ms 0 KB -