Submission #1374612


Source Code Expand

#include<cstdio>
#include<cstring>
#include<algorithm>
#define N 500050
using namespace std;

int n;
char s[N];
int a[N];

bool check(int x){
	int len = n;
	for(int i = 1; i <= n; i++) a[i] = (s[i] - '0') * 9;
	a[1] += 9 * x;
	for(int i = 1; i <= len; i++){
		a[i + 1] += a[i] / 10;
		a[i] %= 10;
		if(a[i + 1] && i == len) len++;
	}
	int sum = 0;
	for(int i = 1; i <= len; i++) sum += a[i], a[i] = 0;
	return sum <= 9 * x;
}

int main(){
	scanf("%s", s + 1);
	n = strlen(s + 1);
	reverse(s + 1, s + n + 1);
	int l = 1, r = n;
	while(l < r){
		int mid = l + r >> 1;
		if(check(mid)) r = mid;
		else l = mid + 1;
	}
	printf("%d\n", l);
}

Submission Info

Submission Time
Task E - Increasing Numbers
User FYTalon
Language C++14 (GCC 5.4.1)
Score 1300
Code Size 673 Byte
Status AC
Exec Time 44 ms
Memory 2560 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:26:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", s + 1);
                    ^

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 1 ms 256 KB
in10.txt AC 44 ms 2560 KB
in11.txt AC 44 ms 2560 KB
in12.txt AC 44 ms 2560 KB
in13.txt AC 44 ms 2560 KB
in14.txt AC 44 ms 2560 KB
in15.txt AC 44 ms 2560 KB
in16.txt AC 44 ms 2560 KB
in17.txt AC 41 ms 2432 KB
in18.txt AC 44 ms 2560 KB
in19.txt AC 43 ms 2560 KB
in2.txt AC 44 ms 2560 KB
in20.txt AC 44 ms 2560 KB
in21.txt AC 44 ms 2560 KB
in22.txt AC 44 ms 2560 KB
in23.txt AC 44 ms 2560 KB
in24.txt AC 44 ms 2560 KB
in25.txt AC 44 ms 2560 KB
in26.txt AC 42 ms 2560 KB
in27.txt AC 31 ms 1920 KB
in28.txt AC 44 ms 2560 KB
in29.txt AC 44 ms 2560 KB
in3.txt AC 44 ms 2560 KB
in30.txt AC 44 ms 2560 KB
in31.txt AC 44 ms 2560 KB
in4.txt AC 42 ms 2560 KB
in5.txt AC 44 ms 2560 KB
in500000.txt AC 44 ms 2560 KB
in6.txt AC 44 ms 2560 KB
in7.txt AC 35 ms 2176 KB
in8.txt AC 43 ms 2560 KB
in9.txt AC 42 ms 2560 KB
sample1.txt AC 1 ms 128 KB
sample2.txt AC 1 ms 128 KB
sample3.txt AC 0 ms 128 KB
sample4.txt AC 1 ms 128 KB