Submission #1878173

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Source Code Expand

#include<cstdio>
#include<cstring>
using namespace std;
const int N=500500;
int i,j,k,n,m,x,sum,ans;
int a[N];
char s[N];
int main() {
	scanf("%s",s+1);
	n=strlen(s+1);
	for (i=1;i<=n;i++) a[i]=s[n-i+1]-'0';
	x=0;n++;
	for (i=1;i<=n;i++) {
		x+=a[i]*9;
		a[i]=x%10;
		x/=10;
	}
	while (n>1 && !a[n]) n--;
	for (i=1;i<=n;i++) sum+=a[i];
	while (sum>0) {
		x=1;
		i=0;
		while (x) {
			i++;
			sum-=a[i];
			x+=a[i];
			a[i]=x%10;
			sum+=a[i];
			x/=10;
		}
		sum--;
		if (i>n) n=i;
		ans++;
	}
	printf("%d\n",(ans+8)/9);
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:9:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s",s+1);
                 ^

Judge Result