Submission #4024124
Source Code Expand
#include<bits/stdc++.h> #define pb push_back #define mp make_pair #define fi first #define se second typedef long long ll; using namespace std; string s; /* bool check(int i, int j){ string t = ""; t += s.substr(0, i - 1); string k = ""; k += s.substr(i, j - i + 1); reverse(k.begin(), k.end()); t += k; t += s.substr(j + 1, s.size() - j + 2); if(s != t)return 1; return 0; } */ int cnt[26]; int main(){/* ios::sync_with_stdio(0); cin.tie(0), cout.tie(0);*/ /* cin >> s; int res = 0; for(int i=0;i<s.size();i++){ for(int j=i+1;j<s.size();j++){ if(check(i, j))res++; } } cout << res; */ cin >> s; for(int i=0;i<s.size();i++){ cnt[s[i] - 'a']++; } int n = s.size(); int res = (n * 1ll * (n - 1)) / 2; for(int i=0;i<26;i++){ res -= (cnt[i] * 1ll * (cnt[i] - 1)) / 2; } cout << res + 1; return 0; }
Submission Info
Submission Time | |
---|---|
Task | B - Reverse and Compare |
User | saken03 |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 916 Byte |
Status | WA |
Exec Time | 8 ms |
Memory | 640 KB |
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 500 | ||||||
Status |
|
|
Set Name | Test Cases |
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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 | WA | 8 ms | 640 KB |
subtask_1_09.txt | WA | 8 ms | 640 KB |
subtask_1_10.txt | WA | 8 ms | 640 KB |
subtask_1_11.txt | WA | 8 ms | 640 KB |
subtask_1_12.txt | WA | 8 ms | 640 KB |
subtask_1_13.txt | WA | 8 ms | 640 KB |
subtask_1_14.txt | AC | 8 ms | 640 KB |
subtask_1_15.txt | WA | 8 ms | 640 KB |
subtask_1_16.txt | AC | 8 ms | 640 KB |
subtask_1_17.txt | WA | 8 ms | 640 KB |