Submission #7443535


Source Code Expand

Copy
#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=a;i<b;i++)
#define rrep(i,a,b) for(int i=a;i>=b;i--)
#define fore(i,a) for(auto &i:a)
#define all(x) (x).begin(),(x).end()
//#pragma GCC optimize ("-O3")
using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); }
typedef long long ll; const int inf = INT_MAX / 2; const ll infl = 1LL << 60;
template<class T>bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; }
template<class T>bool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; }
//---------------------------------------------------------------------------------------------------
vector<pair<char, int>> runLengthEncoding(string s) {
    int n = s.length();

    vector<pair<char, int>> res;
    char pre = s[0];
    int cnt = 1;
    rep(i, 1, n) {
        if (pre != s[i]) {
            res.push_back({ pre, cnt });
            pre = s[i];
            cnt = 1;
        }
        else cnt++;
    }

    res.push_back({ pre, cnt });
    return res;
}
/*---------------------------------------------------------------------------------------------------
            ∧_∧
      ∧_∧  (´<_` )  Welcome to My Coding Space!
     ( ´_ゝ`) /  ⌒i     @hamayanhamayan
    /   \     | |
    /   / ̄ ̄ ̄ ̄/  |
  __(__ニつ/     _/ .| .|____
     \/____/ (u ⊃
---------------------------------------------------------------------------------------------------*/

int N, K;
string S;
//---------------------------------------------------------------------------------------------------
void _main() {
    cin >> N >> K >> S;
    auto rl = runLengthEncoding(S);
    int gr = rl.size();
    rep(k, 0, K) {
        if(3 <= gr)
            gr -= 2;
        else if(gr == 2)
            gr = 1;
    }
    int ans = N - gr;
    cout << ans << endl;
}

Submission Info

Submission Time
Task D - Face Produces Unhappiness
User hamayanhamayan
Language C++14 (GCC 5.4.1)
Score 400
Code Size 1981 Byte
Status
Exec Time 3 ms
Memory 1608 KB

Judge Result

Set Name Score / Max Score Test Cases
All 400 / 400 sample_01, sample_02, sample_03, testcase_01, testcase_02, testcase_03, testcase_04, testcase_05, testcase_06, testcase_07, testcase_08, testcase_09, testcase_10, testcase_11, testcase_12, testcase_13, testcase_14, testcase_15, testcase_16, testcase_17, testcase_18, testcase_19, testcase_20, testcase_21
Sample 0 / 0 sample_01, sample_02, sample_03
Case Name Status Exec Time Memory
sample_01 1 ms 256 KB
sample_02 1 ms 256 KB
sample_03 1 ms 256 KB
testcase_01 2 ms 768 KB
testcase_02 2 ms 1100 KB
testcase_03 2 ms 1216 KB
testcase_04 2 ms 1100 KB
testcase_05 1 ms 384 KB
testcase_06 2 ms 1100 KB
testcase_07 1 ms 384 KB
testcase_08 2 ms 1100 KB
testcase_09 2 ms 1020 KB
testcase_10 2 ms 1100 KB
testcase_11 3 ms 1100 KB
testcase_12 1 ms 384 KB
testcase_13 2 ms 1100 KB
testcase_14 3 ms 1608 KB
testcase_15 3 ms 1608 KB
testcase_16 3 ms 1608 KB
testcase_17 3 ms 1608 KB
testcase_18 2 ms 512 KB
testcase_19 2 ms 512 KB
testcase_20 1 ms 256 KB
testcase_21 2 ms 512 KB