Submission #51666

#	Time	Username	Problem	Language	Result	Execution time	Memory
51666		Mamnoon_Siam	Gondola (IOI14_gondola)	C++17	20 / 100	57 ms	6128 KiB

gondola

//#pragma GCC optimize("Ofast,unroll-loops,no-stack-protector")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

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

#define debug(s) cout<< #s <<" = "<< s <<endl
#define all(v) (v).begin(), (v).end()
#define KeepUnique(v) (v).erase( unique(all(v)), v.end() )
#define MEMSET(a,val) memset(a, val, sizeof a)
#define PB push_back
#define endl '\n'

inline int myrand(int l, int r) {
	int ret = rand(); ret <<= 15; ret ^= rand();
	if(ret < 0) ret = -ret; ret %= (r-l+1); ret += l;
	return ret;
}
template <typename F, typename S>
ostream& operator << (ostream& os, const pair< F, S>& p) {
    return os<<"(" <<p.first<<", "<<p.second<<")"; }

typedef pair<int, int> ii;
template<typename T> using min_pq =
	priority_queue<T, vector<T>, greater<T> >;

//int dx[] = {-1, +0, +1, +0};
//int dy[] = {+0, +1, +0, -1};


int valid(int n, int inputSeq[]) {
	if(n == 1) return 1;
	int idx = -1, id = -1;
	for(int i = 0; i < n; i++) {
		if(inputSeq[i] <= n) {
			idx = i, id = inputSeq[i];
			break;
		}
	}
	set<int> st(inputSeq, inputSeq + n);
	if(idx == -1 or st.size() != n) return int(st.size() == n);
	vector<int> v(n);
	int flag = 1;
	for(int val = id, i = idx; val != id or flag; val = val == n ? 1 : val + 1, i = (i + 1) % n) {
		v[i] = val; flag = 0;
	}
	//for(int i = 0; i < n; i++) cerr << inputSeq[i] << ' '; cerr << endl;
	//for(int i = 0; i < n; i++) cerr << v[i] << ' '; cerr << endl;
	for(int i = 0; i < n; i++) {
		if(inputSeq[i] <= n) {
			if(inputSeq[i] != v[i])
				return 0;
		}
	} return 1;
}

//----------------------

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
  return -2;
}

//----------------------

int countReplacement(int n, int inputSeq[])
{
  return -3;
}

Compilation message (stderr)

gondola.cpp: In function 'int myrand(int, int)':
gondola.cpp:17:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
  if(ret < 0) ret = -ret; ret %= (r-l+1); ret += l;
  ^~
gondola.cpp:17:26: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
  if(ret < 0) ret = -ret; ret %= (r-l+1); ret += l;
                          ^~~
gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:42:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if(idx == -1 or st.size() != n) return int(st.size() == n);
                  ~~~~~~~~~~^~~~
gondola.cpp:42:55: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if(idx == -1 or st.size() != n) return int(st.size() == n);
                                             ~~~~~~~~~~^~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 10 / 10
• Subtask 4: 0 / 5
• Subtask 5: 0 / 10
• Subtask 6: 0 / 20
• Subtask 7: 0 / 5
• Subtask 8: 0 / 15
• Subtask 9: 0 / 15
• Subtask 10: 0 / 10