제출 #241473

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
241473		AGRU	JJOOII 2 (JOI20_ho_t2)	C++17	100 / 100	16 ms	2052 KiB

ho_t2

#include<bits/stdc++.h>

using namespace std;
 
/// ----------------------------- (Debug) ------------------------------
#define sim template < class c
#define ris return * this
#define dor > debug & operator <<
#define eni(x) sim > typename enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) {
sim > struct rge { c b, e; }; sim > rge<c> range(c i, c j) { return rge<c>{i, j}; }
sim > auto dud(c* x) -> decltype(cerr << *x, 0); sim > char dud(...);
struct debug {
#ifndef ONLINE_JUDGE
eni(!=) cerr << boolalpha << i; ris; }
eni(==) ris << range(begin(i), end(i));}
sim, class b dor(pair < b, c > d) {ris << "(" << d.first << ", " << d.second << ")";}
sim dor(rge<c> d) {*this << "["; for (auto it = d.b; it != d.e; ++it) *this << ", " + 2 * (it == d.b) << *it; ris << "]";}
#else
sim dor(const c&) { ris; }
#endif
};
vector<char*> tokenizer(const char* args) {
  char *token = new char[111]; strcpy(token, args); token = strtok(token, ", ");
  vector<char*> v({token});
  while(token = strtok(NULL,", ")) v.push_back(token);
  return reverse(v.begin(), v.end()), v;
}
void debugg(vector<char*> args) { cerr << "\b\b "; }
template <typename Head, typename... Tail>
void debugg(vector<char*> args, Head H, Tail... T) {
  debug() << " [" << args.back() << ": " << H << "] ";
  args.pop_back(); debugg(args, T...);
}
#define harg(...) #__VA_ARGS__
#ifndef ONLINE_JUDGE
#define dbg(...) { debugg(tokenizer(harg(__VA_ARGS__, \b\t-->Line)), __VA_ARGS__, __LINE__); cerr << endl;}
#else
#define dbg(...) { }
#endif
/// -----------------------------------------------------------------------
 
typedef long long ll;
typedef vector<int> vi;
typedef pair<int,int> pi;
typedef vector<pi> vpi; 
#define IOS ios::sync_with_stdio(0); cin.tie(0); cout.tie(0)    
#define F first
#define S second
#define PB push_back
#define EB emplace_back
#define MP make_pair
#define print(x) cout << x << "\n";
#define REP(i,a,b) for(i=a;i<=b;i++)
#define RAP(i,a,b) for(i=a;i>=b;i--)
#define spa <<" "<<
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)x.size()
ll mod=1e9+7;
const int MX=0x3f3f3f3f;

int main(){
    IOS;
    int n,k,i;
    cin>>n>>k;
    string s;
    cin>>s;
    vi J,O,I;
    REP(i,0,n-1){
        if(s[i]=='J') J.EB(i);
        else if(s[i]=='O') O.EB(i);
        else I.EB(i);
    }
    // dbg(J,O,I);
    int ans=MX,j;
    REP(i,0,sz(J)-k){
        j=upper_bound(all(O),J[i+k-1])-O.begin();
        if(j+k-1>=sz(O)) break;
        j=upper_bound(all(I),O[j+k-1])-I.begin();
        if(j+k-1>=sz(I)) break;
        // dbg(i,j,J[i],I[j+k-1]);
        ans=min(ans,I[j+k-1]-J[i]+1-3*k);
    }
    if(ans==MX) cout<<-1;
    else cout<<ans;
    return 0;   
}

컴파일 시 표준 에러 (stderr) 메시지

ho_t2.cpp: In function 'std::vector<char*> tokenizer(const char*)':
ho_t2.cpp:25:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   while(token = strtok(NULL,", ")) v.push_back(token);
         ~~~~~~^~~~~~~~~~~~~~~~~~~

• Subtask 1: 1 / 1
• Subtask 2: 12 / 12
• Subtask 3: 87 / 87