Submission #3422512
Source Code Expand
#include<cstdio> #include<cstring> #include<vector> #include<queue> #include<algorithm> #include<cmath> #include<climits> #include<string> #include<set> #include<numeric> #include<map> #include<iostream> using namespace std; #define rep(i,n) for(int i = 0;i<((int)(n));i++) #define reg(i,a,b) for(int i = ((int)(a));i<=((int)(b));i++) #define irep(i,n) for(int i = ((int)(n)-1);i>=0;i--) #define ireg(i,a,b) for(int i = ((int)(b));i>=((int)(a));i--) typedef long long ll; typedef pair<ll, ll> mp; ll inf=1e18+7; /* ac 違う文字を選んだら必ず新たな文字列になる */ int main(void){ ll c[30]={},ans; string s; cin>>s; rep(i,s.size()){ c[s[i]-'a']++; } ans=s.size()*(s.size()-1)/2; rep(i,26){ ans-=c[i]*(c[i]-1)/2; } cout<<ans+1<<endl;//何もしないのも1通り return 0; }
Submission Info
Submission Time | |
---|---|
Task | B - Reverse and Compare |
User | RMQ |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 848 Byte |
Status | AC |
Exec Time | 8 ms |
Memory | 640 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 500 / 500 | ||||
Status |
|
|
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 | 1 ms | 256 KB |
sample_02.txt | AC | 1 ms | 256 KB |
sample_03.txt | AC | 1 ms | 256 KB |
subtask_1_01.txt | AC | 1 ms | 256 KB |
subtask_1_02.txt | AC | 8 ms | 640 KB |
subtask_1_03.txt | AC | 1 ms | 256 KB |
subtask_1_04.txt | AC | 1 ms | 256 KB |
subtask_1_05.txt | AC | 1 ms | 256 KB |
subtask_1_06.txt | AC | 1 ms | 256 KB |
subtask_1_07.txt | AC | 2 ms | 256 KB |
subtask_1_08.txt | AC | 8 ms | 640 KB |
subtask_1_09.txt | AC | 8 ms | 640 KB |
subtask_1_10.txt | AC | 8 ms | 640 KB |
subtask_1_11.txt | AC | 8 ms | 640 KB |
subtask_1_12.txt | AC | 8 ms | 640 KB |
subtask_1_13.txt | AC | 8 ms | 640 KB |
subtask_1_14.txt | AC | 8 ms | 640 KB |
subtask_1_15.txt | AC | 8 ms | 640 KB |
subtask_1_16.txt | AC | 8 ms | 640 KB |
subtask_1_17.txt | AC | 8 ms | 640 KB |