Submission #1126396

#	Time	Username	Problem	Language	Result	Execution time	Memory
1126396		luvna	Restore Array (RMI19_restore)	C++20	7 / 100	11 ms	328 KiB

restore

#include<bits/stdc++.h>

#define MASK(i) (1 << (i))
#define pub push_back
#define all(v) v.begin(), v.end()
#define compact(v) v.erase(unique(all(v)), end(v))
#define pii pair<int,int>
#define fi first
#define se second
#define endl "\n"
#define sz(v) (int)(v).size()
#define dbg(x) "[" #x " = " << (x) << "]"

using namespace std;

template<class T> bool minimize(T& a, T b){if(a > b) return a = b, true;return false;}
template<class T> bool maximize(T& a, T b){if(a < b) return a = b, true;return false;}

typedef long long ll;
typedef long double ld;

mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
ll rand(ll l, ll r){return uniform_int_distribution<ll>(l, r)(rng);}

const int N = 5005;

int n, q;
int t[N], l[N], r[N], k[N];

namespace subtask1{
    bool check(void){
        return n <= 18 && q <= 200;
    }

    bool check(int mask){
        for(int j = 1; j <= q; j++){
            int cnt = 0;
            for(int i = l[j]; i <= r[j]; i++) cnt += ((mask >> i & 1) == t[j]);
            if(!t[j] && cnt < k[j]) return false;
            if(t[j] && cnt < (r[j] - l[j] + 1) - k[j] + 1) return false;
        }
        return true;
    }

    void main(){
        for(int mask = 0; mask < (1 << n); mask++){
            if(check(mask)){
                for(int i = 0; i < n; i++) cout << (mask >> i & 1) << " ";
                return;
            }
        }

        return cout << -1, void();
    }
}

void solve(){
    cin >> n >> q;

    for(int i = 1; i <= q; i++) cin >> l[i] >> r[i] >> k[i] >> t[i];

    if(subtask1::check()) subtask1::main();
}

signed main(){
    ios_base::sync_with_stdio(NULL);
    cin.tie(0); cout.tie(0);

    #define task "task"

    if(fopen(task".INP", "r")){
        freopen(task".INP", "r", stdin);
        freopen(task".OUT", "w", stdout);
    }

    int t; t = 1; //cin >> t;
    while(t--) solve();
}

Compilation message (stderr)

restore.cpp: In function 'int main()':
restore.cpp:72:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   72 |         freopen(task".INP", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
restore.cpp:73:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   73 |         freopen(task".OUT", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 0 / 13
• Subtask 3: 0 / 25
• Subtask 4: 0 / 55