Submission #642921

#	Time	Username	Problem	Language	Result	Execution time	Memory
642921		n3rm1n	Restore Array (RMI19_restore)	C++17	0 / 100	3 ms	596 KiB

restore

#include<bits/stdc++.h>
#define endl '\n'
using namespace std;
const int MAXN = 5005;
void speed()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
}
int n, m;
int a[MAXN];

vector < pair < int, int > > v;
int p[MAXN];
void read()
{
    cin >> n >> m;
    int l, r, k, val;
    for (int i = 1; i <= m; ++ i)
    {
        cin >> l >> r >> k >> val;
        if(k == 1 && val == 1)
        {
            for (int j = l; j <= r; ++ j)
                a[j] = 1;
        }
        else if(k == 1 && val == 0)
        {
            v.push_back(make_pair(l, r));
        }
    }
    for (int i = 1; i <= n; ++ i)
    {
        p[i] = p[i-1] + a[i];
    }
    bool ok = true;
    for (int i = 0; i < v.size() && false; ++ i)
    {
        int l = v[i].first, r = v[i].second;
        if(p[r] - p[l-1] == r - l + 1)ok = false;
    }
    if(!ok)cout << -1 << endl;
    else
    {
        for (int i = 1; i <= n; ++ i)
            cout << a[i] << " ";
        cout << endl;
    }
}

int main()
{
    speed();
    read();
    return 0;
}

Compilation message (stderr)

restore.cpp: In function 'void read()':
restore.cpp:38:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |     for (int i = 0; i < v.size() && false; ++ i)
      |                     ~~^~~~~~~~~~

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