Submission #756027

#	Time	Username	Problem	Language	Result	Execution time	Memory
756027		aykhn	Sequence (BOI14_sequence)	C++14	0 / 100	1 ms	212 KiB

sequence

#include <bits/stdc++.h>

// author: aykhn

using namespace std;

typedef long long ll;

#define TC int t; cin >> t; while (t--) _();
#define OPT ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define all(v) v.begin(), v.end()
#define pii pair<int, int>
#define mpr make_pair
#define eb emplace_back
#define pb push_back
#define ts to_string
#define fi first
#define se second
#define ins insert
#define int ll
#define inf 0x3F3F3F3F
#define infll 0x3F3F3F3F3F3F3F3FLL
#define bpc __builtin_popcount

bool ok(int val, int x)
{
    while (val)
    {
        if (val % 10 == x) return true;
        val /= 10;
    }
    
    return false;
}
signed main()
{
    OPT;
    int n;
    cin >> n;
    
    vector<int> v(n, 0);
    
    for (int i = 0; i < n; i++) cin >> v[i];
    
    string s = ts(n);
    
    if (v[0] == 0) s = "10" + s;
    else s = ts(v[0]) + s;
    
    for (int i = 1; i < s.length(); i++)
    {
        s[i] = '0';
    }
    
    cout << s << endl;
}

Compilation message (stderr)

sequence.cpp: In function 'int main()':
sequence.cpp:50:23: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |     for (int i = 1; i < s.length(); i++)
      |                     ~~^~~~~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 33
• Subtask 3: 0 / 25
• Subtask 4: 0 / 33