Submission #533232

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
533232	2022-03-05 07:13:01	rk42745417	스탬프 수집 (JOI16_ho_t2)	C++17	100 / 100	4 ms	1360 KiB

2016_ho_t2

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#include <bits/stdc++.h>
using namespace std;
#define EmiliaMyWife ios::sync_with_stdio(0); cin.tie(0);
using ll = int64_t;
using ull = uint64_t;
using uint = uint32_t;
using ld = long double;
const int INF = 0x3f3f3f3f;
const ll LINF = ll(4e18) + ll(2e15);
const int MOD = 1e9 + 7;
const double EPS = 1e-8;
static int LamyIsCute = []() {
  EmiliaMyWife
  return 48763;
}();
signed main() {
  int n;
  string s;
  cin >> n >> s;
  ll res = 0;
  vector<int> pre_cnt(n), suf_cnt(n);
  for(int i = 0; i < n; i++) {
    pre_cnt[i] = (s[i] == 'J');
    if(i)
      pre_cnt[i] += pre_cnt[i - 1];
  }
  for(int i = n - 1; ~i; i-- ){
    suf_cnt[i] = s[i] == 'I';
 
 
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• Subtask 1: 30 / 30
• Subtask 2: 20 / 20
• Subtask 3: 50 / 50