Submission #536909

#	Time	Username	Problem	Language	Result	Execution time	Memory
536909		DJ035	Unscrambling a Messy Bug (IOI16_messy)	C++17	Compilation error	0 ms	0 KiB

messy

#include "messy.h"
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,avx,avx2")
#include <bits/stdc++.h>
#define MEM 222
#define sanic ios_base::sync_with_stdio(0)
#define x first
#define y second
#define pf push_front
#define pb push_back
#define all(v) v.begin(), v.end()
#define sz size()
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pi;
const ll INF = 1e17+7;
const ll MOD = 998244353;
ll gcd(ll a, ll b){
    if(a%b) return gcd(b, a%b);
    return b;
}
int N;
vector<int> ans;
void ins(int l, int r) {
    if(r-l==1) return;
    string s(N, '0');
    int mid=l+r>>1;
    for(int i=l; i<r; i++) 
        s[i] = '1';
    for(int i=l; i<mid; i++) {
        s[i] = '0';
        add_element(s);
        s[i] = '1';
    }
    ins(l, mid);
    ins(mid, r);
}
 
void hwak(vector<int> a, int k) {
    if(a.sz()==1) {
        ans[a[0]] = k;
        return;
    }
    vector<int> l, r;
    string s(N,'0');
    for(int i:a) 
        s[i] = '1';
    for(int i:a) {
        s[i] = '0';
        if(check_element(s)) l.push_back(i);
        else r.push_back(i);
        s[i] = '1';
    }
    hwak(l, k);
    hwak(r, k+r.size());
}
 
std::vector<int> restore_permutation(int n, int w, int r) {
    vector<int> im;
    ans.resize(n);
    N = n;
    ins(0, n);
    compile_set();
    for(int i=0; i<n; i++) 
        im.push_back(i);
    hwak(im, 0);
    return ans;
}

Compilation message (stderr)

messy.cpp: In function 'void ins(int, int)':
messy.cpp:29:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   29 |     int mid=l+r>>1;
      |             ~^~
messy.cpp: In function 'void hwak(std::vector<int>, int)':
messy.cpp:42:13: error: expression cannot be used as a function
   42 |     if(a.sz()==1) {
      |             ^