#include <bits/stdc++.h>
#define startt ios_base::sync_with_stdio(false);cin.tie(0);
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
typedef unsigned long long ull;
typedef long long ll;
using namespace std;
#define FOR(n) for(int i=0;i<n;i++)
#define vt vector
#define vint vector<int>
#define all(v) v.begin(), v.end()
#define MOD 1000000007
#define MOD2 998244353
#define MX 1000000000
#define nax 100005
#define MXL 1000000000000000000
#define PI 3.14159265
#define pb push_back
#define pf push_front
#define sc second
#define fr first
#define int ll
#define endl '\n'
#define ld long double
int ceildiv(int one, int two) {
if (one % two == 0) {return one / two;}
else {return one / two + 1;}
} int power(int n, int pow, int m) {
if (pow == 0) return 1;
if (pow % 2 == 0) {
ll x = power(n, pow / 2, m);
return (x * x) % m;
}
else return (power(n, pow - 1, m) * n) % m;
} int gcd(int a, int b) {
if (!b)return a;
return gcd(b, a % b);
} int factorial(int n, int mod) {
if (n > 1)
return (n * factorial(n - 1, mod)) % mod;
else
return 1;
} int lcm(int a, int b) {
return (a * b) / gcd(a, b);
} vector<int> read(int n) {vector<int> a; for (int i = 0; i < n; i++) { int x; cin >> x; a.pb(x);} return a;}vector<vector<int>> adj;void init(int n) {for (int i = 0; i <= n; i++) { vector<int> a; adj.pb(a);}}
int32_t main(){
startt;
//freopen("algsort.in", "r", stdin);
//freopen("algsort.out", "w", stdout);
int n, k;
cin >> n >> k;
string s;
cin >> s;
s.pb('#');
stack<pair<int, char>> st;
int cnt = 0;
for(int i = 0; i <= n; i++)
{
if(i == 0 || s[i] == s[i-1])
{
cnt++;
}
else
{
if(cnt%k != 0)
{
if(!st.empty() && s[i-1] == st.top().sc)
{
pair<int, char> tmp;
tmp.sc = s[i-1];
tmp.fr = (st.top().fr+cnt)%k;
st.pop();
if(tmp.fr != 0)
{
st.push(tmp);
}
}
else
{
st.push({cnt, s[i-1]});
}
}
cnt = 1;
}
}
string ans;
while(!st.empty())
{
for(int i = 0; i < st.top().fr; i++)
{
ans.pb(st.top().sc);
}
st.pop();
}
reverse(all(ans));
cout << ans << endl;
}
Compilation message
treasure.cpp:4: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
4 | #pragma GCC optimization ("O3")
|
treasure.cpp:5: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
5 | #pragma GCC optimization ("unroll-loops")
|
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
