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Submission #348751

# Submission time Handle Problem Language Result Execution time Memory
348751 2021-01-15T16:10:18 Z ryansee Ancient Books (IOI17_books) C++14
0 / 100
 6 ms 8172 KB 
#include "books.h"

#include "bits/stdc++.h"
using namespace std;

#define FAST ios_base::sync_with_stdio(false); cin.tie(0);
#define pb push_back
#define eb emplace_back
#define ins insert
#define f first
#define s second
#define cbr cerr<<"hi\n"
#define mmst(x, v) memset((x), v, sizeof ((x)))
#define siz(x) ll(x.size())
#define all(x) (x).begin(), (x).end()
#define lbd(x,y) (lower_bound(all(x),y)-x.begin())
#define ubd(x,y) (upper_bound(all(x),y)-x.begin())
// mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());    //can be used by calling rng() or shuffle(A, A+n, rng)
// inline long long rand(long long x, long long y) { return rng() % (y+1-x) + x; } //inclusivesss
string inline to_string(char c) {string s(1,c);return s;} template<typename T> inline T gcd(T a,T b){ return a==0?llabs(b):gcd(b%a,a); }

using ll=long long; 
using ld=long double;
#define FOR(i,s,e) for(ll i=s;i<=ll(e);++i)
#define DEC(i,s,e) for(ll i=s;i>=ll(e);--i)
using pi=pair<ll,ll>; using spi=pair<ll,pi>; using dpi=pair<pi,pi>; 

long long LLINF = 1e18;
int INF = 1e9+1e6;
#define MAXN (1000006)

ll n, ans;
ll co[MAXN], cur, l, e;

long long minimum_walk(std::vector<int> p, int s) {
	n = siz(p), ans = 0, mmst(co, 0), cur = 0, l = 0;
	FOR(i,0,n-1) if(p[i] ^ i) l = i;
	DEC(i,n-1,0) if(p[i] ^ i) e = i;
	FOR(i,e,l - 1) {
		if(p[i] > i) ++ co[i], -- co[p[i]];
		cur += co[i];
		ans += max(cur, 1ll) * 2;
	}
	
	return ans;
}

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 8172 KB 3rd lines differ - on the 1st token, expected: '6', found: '4'
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 8172 KB 3rd lines differ - on the 1st token, expected: '6', found: '4'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 28.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 8172 KB 3rd lines differ - on the 1st token, expected: '6', found: '4'
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 6 ms 8172 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 8172 KB 3rd lines differ - on the 1st token, expected: '6', found: '4'
2 Halted 0 ms 0 KB -