제출 #742464

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
742464		boyliguanhan	Unscrambling a Messy Bug (IOI16_messy)	C++17	100 / 100	3 ms	468 KiB

messy

#include <vector>
#define PB push_back
#define For(i,j,k,l) for(int i = j; i < k; i+=l)
#define Rfor(i,j) for(auto i: j)
#include "messy.h"
#define clr(x) l[x*2]=l[x],R[x*2+1]=R[x],R[x*2]=l[x]+R[x]>>1,l[x*2+1]=R[x*2]+1;
using namespace std;
#define N 520
int l[N], R[N], dis[N];
vector<int> pos[N];
std::vector<int> restore_permutation(int n, int w, int r) {
    R[1] = n-1, R[0] = -1;
    For(i,1,n,1) clr(i);
    For(i, 2, 2*n,2) {
        if(i>2) dis[i] = i-1;
        string str(n, '0');
        For(j, l[dis[i]], 1+R[dis[i]],1) str[j] = '1';
        For(j,l[i],1+R[i],1) {
            string str2 = str;
            str2[j] = '1';
            add_element(str2);
        }
    }
    compile_set();
    For(i,0,n,1) pos[1].PB(i);
    For(i,2,2*n,2) {
        string str(n, '0');
        Rfor(j,pos[dis[i]]) str[j] = '1';
        Rfor(j,pos[i/2]) {
            string str2=str;
            str2[j] = '1';
            if(check_element(str2)) pos[i].PB(j);
            else pos[i+1].PB(j);
        }
    }
    vector<int> res(n);
    For(i,n,2*n,1) res[pos[i][0]] = i-n;
    return res;
}

컴파일 시 표준 에러 (stderr) 메시지

messy.cpp: In function 'std::vector<int> restore_permutation(int, int, int)':
messy.cpp:6:53: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    6 | #define clr(x) l[x*2]=l[x],R[x*2+1]=R[x],R[x*2]=l[x]+R[x]>>1,l[x*2+1]=R[x*2]+1;
      |                                                 ~~~~^~~~~
messy.cpp:13:18: note: in expansion of macro 'clr'
   13 |     For(i,1,n,1) clr(i);
      |                  ^~~

• Subtask 1: 20 / 20
• Subtask 2: 18 / 18
• Subtask 3: 11 / 11
• Subtask 4: 21 / 21
• Subtask 5: 30 / 30