제출 #30308

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
30308		ozaslan	곤돌라 (IOI14_gondola)	C++14	10 / 100	26 ms	3628 KiB

gondola

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

int valid(int n, int inputSeq[])
{
  /*  for(int i = 0; i < n; i++)
        printf("%d ", inputSeq[i]);
    printf("\n");
*/
	int bas = -1;
	for (int i = 0; i < n; i++)
		if(inputSeq[i] <= n) {
			bas = i;
			break;
		}

	int s = bas == -1 ? 1 : inputSeq[bas];
	bas = bas == -1 ? 0 : bas;

    //printf("Bas: %d, s:%d\n", bas, s);
	int bayrak = 1;
	for (int i = bas; i < n; i++, s++) {
        if(s == n+1) s = 1;
		if(inputSeq[i] != s && inputSeq[i] < n) {
			bayrak = 0;
			break;
		}
	}

	for (int i = 0; i < bas; i++, s++) {
        if(s == n+1) s = 1;
		if(inputSeq[i] != s && inputSeq[i] < n) {
			bayrak = 0;
			break;
		}
	}

    if(!bayrak) return 0;

    vector<int> v (inputSeq, inputSeq+n);
    sort(v.begin(), v.end());

    for(int i = 1; i < n; i++)
    	if(v[i] == v[i-1]) {
    		bayrak = 0;
    		break;
    	}

	return bayrak;
}

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

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

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

long long us(long long a, long long 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[])
{
    if( !valid(n, inputSeq) ) return 0;
	
	vector<int> v;

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

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

	long long 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);
		sonuc %= MOD;
		onceki = v[i];
	}

	return sonuc % MOD;
}

컴파일 시 표준 에러 (stderr) 메시지

gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:84:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if (v.size() == n) sonuc = n;
               ^
gondola.cpp:87:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < v.size(); i++) {
                   ^

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 0 / 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