oj.uz

Submission #203841

# Submission time Handle Problem Language Result Execution time Memory
203841 2020-02-22T14:20:20 Z Evirir JJOOII 2 (JOI20_ho_t2) C++17
0 / 100
 5 ms 380 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;

#define watch(x) cout<<(#x)<<"="<<(x)<<'\n'
#define mset(d,val) memset(d,val,sizeof(d))
#define setp(x) cout<<fixed<<setprecision(x)
#define forn(i,a,b) for(int i=a;i<b;i++)
#define fore(i,a,b) for(int i=a;i<=b;i++)
#define pb push_back
#define F first
#define S second
#define INF ll(1e18)
#define MOD 998244353
#define pqueue priority_queue
#define fbo find_by_order
#define ook order_of_key
typedef long long ll;
typedef pair<ll,ll> ii;
typedef vector<ll> vi;
typedef vector<ii> vii;
typedef long double ld;
typedef tree<ll, null_type, less<ll>, rb_tree_tag, tree_order_statistics_node_update> pbds;

#define MAXN 100005

int conv(char c){
	if(c=='J') return 0;
	if(c=='O') return 1;
	return 2;
}

int n,k;
string s;
vi loc[3];
ll ans=INF;

int main()
{
	ios_base::sync_with_stdio(0); cin.tie(0);
	
	cin>>n>>k;
	cin>>s;
	
	forn(i,0,n){
		loc[conv(s[i])].pb(i);
	}
	
	forn(i,0,loc[0].size()-k+1)
	{
		int d1=loc[0][i];
		auto p1=loc[0].begin()+i;
		p1+=k-1;
		if(p1==loc[0].end()) break;
		
		auto p2=upper_bound(loc[1].begin(),loc[1].end(),*p1);
		if(p2==loc[1].end()) break;
		p2+=k-1;
		if(p2==loc[1].end()) break;
		
		auto p3=upper_bound(loc[2].begin(),loc[2].end(),*p2);
		if(p3==loc[2].end()) break;
		p3+=k-1;
		if(p3==loc[2].end()) break;
		
		ans=min(ans, *p3-d1+1-3*k);
	}
	
	if(ans==INF) cout<<-1<<'\n';
	else cout<<ans<<'\n';
	
	return 0;
}

Compilation message

ho_t2.cpp: In function 'int main()':
ho_t2.cpp:10:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define forn(i,a,b) for(int i=a;i<b;i++)
ho_t2.cpp:51:7:
  forn(i,0,loc[0].size()-k+1)
       ~~~~~~~~~~~~~~~~~~~~~       
ho_t2.cpp:51:2: note: in expansion of macro 'forn'
  forn(i,0,loc[0].size()-k+1)
  ^~~~

Subtask #1
0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 4 ms 376 KB Output is correct
5 Correct 4 ms 380 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Incorrect 5 ms 376 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 4 ms 376 KB Output is correct
5 Correct 4 ms 380 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Incorrect 5 ms 376 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #3
0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 4 ms 376 KB Output is correct
5 Correct 4 ms 380 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Incorrect 5 ms 376 KB Output isn't correct
11 Halted 0 ms 0 KB -