Submission #1540138


Source Code Expand

#include<algorithm> 
#include<bitset> 
#include<memory.h> 
#include<cstdio> 
#include<cmath>
#include<cstring> 
#define maxn 400010
#define ll long long
#define pa pair<ll,ll> 
#define ld long double 
#define For(i,x,y)  for(ll i=x;i<=y;++i) 
#define FOr(i,x,y)  for(ll i=x;i>=y;--i) 
using namespace std; 
inline ll read(){   ll x=0,f=1;char ch=getchar();   while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}  while(ch>='0'&&ch<='9'){x=x*10+ch-'0';ch=getchar();}  return x*f; } 
inline void write(ll x){    if (x<0) putchar('-'),x=-x; if (x>=10) write(x/10);   putchar(x%10+'0');  } 
inline void writeln(ll x){ write(x);   puts("");   }
char s[maxn];
ll n,a[maxn],ans;
int main(){
	scanf("%s",s+1);	n=strlen(s+1);
	For(i,1,n)	ans+=i-a[s[i]],a[s[i]]++;
	writeln(ans-n+1);
}

Submission Info

Submission Time
Task B - Reverse and Compare
User SHENZHEBEI
Language C++14 (GCC 5.4.1)
Score 500
Code Size 799 Byte
Status AC
Exec Time 1 ms
Memory 384 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:20:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s",s+1); n=strlen(s+1);
                 ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 500 / 500
Status
AC × 3
AC × 23
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
All sample_01.txt, sample_02.txt, sample_03.txt, sample_01.txt, sample_02.txt, sample_03.txt, subtask_1_01.txt, subtask_1_02.txt, subtask_1_03.txt, subtask_1_04.txt, subtask_1_05.txt, subtask_1_06.txt, subtask_1_07.txt, subtask_1_08.txt, subtask_1_09.txt, subtask_1_10.txt, subtask_1_11.txt, subtask_1_12.txt, subtask_1_13.txt, subtask_1_14.txt, subtask_1_15.txt, subtask_1_16.txt, subtask_1_17.txt
Case Name Status Exec Time Memory
sample_01.txt AC 0 ms 128 KB
sample_02.txt AC 0 ms 128 KB
sample_03.txt AC 0 ms 128 KB
subtask_1_01.txt AC 0 ms 128 KB
subtask_1_02.txt AC 1 ms 384 KB
subtask_1_03.txt AC 1 ms 128 KB
subtask_1_04.txt AC 0 ms 128 KB
subtask_1_05.txt AC 0 ms 128 KB
subtask_1_06.txt AC 0 ms 128 KB
subtask_1_07.txt AC 1 ms 128 KB
subtask_1_08.txt AC 1 ms 384 KB
subtask_1_09.txt AC 1 ms 384 KB
subtask_1_10.txt AC 1 ms 384 KB
subtask_1_11.txt AC 1 ms 384 KB
subtask_1_12.txt AC 1 ms 384 KB
subtask_1_13.txt AC 1 ms 384 KB
subtask_1_14.txt AC 1 ms 384 KB
subtask_1_15.txt AC 1 ms 384 KB
subtask_1_16.txt AC 1 ms 384 KB
subtask_1_17.txt AC 1 ms 384 KB