Submission #1540664

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Source Code Expand

#include<cstdio>
#include<cstring>
using namespace std;
char s[200010];
int l,cnt[30],i;
long long ans;
int main()
{
	scanf("%s",&s);
	l=strlen(s);
	for (i=0;i<l;i++) cnt[s[i]-'a']++;
	ans=0;
	for (i=0;i<l;i++)
	{
		ans+=l-i-cnt[s[i]-'a'];
		cnt[s[i]-'a']--;
	}
	printf("%lld\n",ans+1);
}















//reverse only if a[i]!=a[j]
//otherwise,if a[i]=a[j], reverse [i+1..j-1]
//result differently!

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:9:15: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[200010]’ [-Wformat=]
  scanf("%s",&s);
               ^
./Main.cpp:9:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s",&s);
                ^

Judge Result