Submission #1333173


Source Code Expand

#include <bits/stdc++.h>
#define INF 0x3f3f3f3f
#define maxn 500100
#define lson root << 1
#define rson root << 1 | 1
#define lent (t[root].r - t[root].l + 1)
#define lenl (t[lson].r - t[lson].l + 1)
#define lenr (t[rson].r - t[rson].l + 1)
#define N 1111
#define eps 1e-6
#define pi acos(-1.0)
#define e exp(1.0)
using namespace std;
const int mod = 1e9 + 7;
typedef long long ll;
typedef unsigned long long ull;
char s[maxn];
int a[maxn];
int len;
bool check(int x)
{
    int sum = x * 9, cnt = 0;
    for (int i = 0; i < len; i++)
    {
        sum += a[i];
        cnt += sum % 10;
        sum /= 10;
    }
    while (sum > 0)
    {
        cnt += sum % 10;
        sum /= 10;
    }
    return cnt <= x * 9;
}
int main()
{
    while (~scanf("%s", s))
    {
        memset(a, 0, sizeof(a));
        len = strlen(s);
        reverse(s, s + len);
        for (int i = 0; i < len; i++)
            a[i] = (s[i] - '0') * 9;
        for (int i = 0; i < len; i++)
        {
            a[i + 1] += a[i] / 10;
            a[i] %= 10;
        }
        if (a[len])
            len++;
        int l = 0, r = len * 2, ans = -1;
        while (l < r)
        {
            int mid = l + r >> 1;
            if (check(mid))
            {
                ans = mid;
                r = mid;
            }
            else
                l = mid + 1;
        }
        printf("%d\n", ans);
    }
    return 0;
}

Submission Info

Submission Time
Task E - Increasing Numbers
User vjudge1
Language C++14 (GCC 5.4.1)
Score 1300
Code Size 1402 Byte
Status AC
Exec Time 35 ms
Memory 2688 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 1300 / 1300
Status
AC × 4
AC × 40
Set Name Test Cases
Sample sample1.txt, sample2.txt, sample3.txt, sample4.txt
All sample1.txt, sample2.txt, sample3.txt, sample4.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in2.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in3.txt, in30.txt, in31.txt, in4.txt, in5.txt, in500000.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt, sample3.txt, sample4.txt
Case Name Status Exec Time Memory
in1.txt AC 2 ms 2176 KB
in10.txt AC 34 ms 2688 KB
in11.txt AC 35 ms 2688 KB
in12.txt AC 34 ms 2688 KB
in13.txt AC 34 ms 2688 KB
in14.txt AC 34 ms 2688 KB
in15.txt AC 34 ms 2688 KB
in16.txt AC 34 ms 2688 KB
in17.txt AC 33 ms 2688 KB
in18.txt AC 34 ms 2688 KB
in19.txt AC 34 ms 2688 KB
in2.txt AC 34 ms 2688 KB
in20.txt AC 34 ms 2688 KB
in21.txt AC 34 ms 2688 KB
in22.txt AC 34 ms 2688 KB
in23.txt AC 34 ms 2688 KB
in24.txt AC 34 ms 2688 KB
in25.txt AC 33 ms 2688 KB
in26.txt AC 33 ms 2688 KB
in27.txt AC 25 ms 2560 KB
in28.txt AC 33 ms 2688 KB
in29.txt AC 34 ms 2688 KB
in3.txt AC 34 ms 2688 KB
in30.txt AC 34 ms 2688 KB
in31.txt AC 34 ms 2688 KB
in4.txt AC 32 ms 2688 KB
in5.txt AC 34 ms 2688 KB
in500000.txt AC 35 ms 2688 KB
in6.txt AC 34 ms 2688 KB
in7.txt AC 28 ms 2560 KB
in8.txt AC 34 ms 2688 KB
in9.txt AC 32 ms 2688 KB
sample1.txt AC 2 ms 2176 KB
sample2.txt AC 2 ms 2176 KB
sample3.txt AC 2 ms 2176 KB
sample4.txt AC 2 ms 2176 KB