제출 #30293

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
30293		ozaslan	곤돌라 (IOI14_gondola)	C++14	0 / 100	0 ms	2544 KiB

gondola

#include "gondola.h"
#include <vector>
#include <algorithm>
#define MOD 1000000009
using namespace std;

int valid(int n, int inputSeq[])
{
	int bayrak = 1;
	for (int i = 0; i < n; i++) {
		if (inputSeq[i] <= n) {
			int sayi = inputSeq[i];
			for(int j = i; j < n; j++, sayi++) {
				if (inputSeq[i] != sayi && inputSeq[i] < n) {
					bayrak = 0;
					break;
				}
			}
		}
	}
    
	return -1;
}

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

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

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

int us(int a, int b) {
	if(b == 1) return a;
	if(b & 1) return (us(a, b>>1) * us(a, b>>1) * a) % MOD;
	return (us(a, b>>1) * us(a, b>>1)) % MOD;
}


int countReplacement(int n, int inputSeq[])
{
	vector<int> v;

	for (int i = 0; i < n; i++)
		if (inputSeq[i] > n) v.push_back(inputSeq[i]);

	sort(v.begin(), v.end());

	int sonuc = 1;

	if (v.size() == n) sonuc = n;

	int onceki = n; 
	for(int i = 0; i < v.size(); i++) {
		sonuc *= us(v.size()-i, v[i]-onceki);
		onceki = v[i];
	}

	return sonuc % MOD;
}

컴파일 시 표준 에러 (stderr) 메시지

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:9:6: warning: variable 'bayrak' set but not used [-Wunused-but-set-variable]
  int bayrak = 1;
      ^
gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:52:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if (v.size() == n) sonuc = n;
               ^
gondola.cpp:55:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < v.size(); i++) {
                   ^

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