제출 #557507

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
557507		MDSPro	정렬하기 (IOI15_sorting)	C++14	20 / 100	4 ms	460 KiB

sorting

// MDSPro
#include "sorting.h"
#include <bits/stdc++.h>

#define trav(i,n) for(int i = 0; i < (n); i++)
#define pb push_back
#define se second
#define fi first
#define all(x) (x).begin(),(x).end()

using namespace std;
using ll = long long;
using ld = long double;
using pii = pair<int,int>;
using vi = vector<int>;

const ld PI = 3.141592653589793;
const ll MOD = 1e9+7;
const int INF = 1e9;
const ll INFLL = 4e18;
const double EPS = 1e-9;
const int SIZE = 1000*1007;

int findSwapPairs(int n, int s[], int m, int x[], int y[], int p[], int q[]) {
    auto isSorted = [&n,&s]()->bool{
        for(int i = 1; i < n; ++i){
            if(s[i-1] > s[i]) return false;
        }
        return true;
    };
    
    int ans = 0;
    for(int j = 0; j < n; ++j){
        if(isSorted()) break;
        
        int mn = s[j];
        int mni = j;
        
        for(int i = j+1; i < n; ++i){
            if(mn > s[i]) {
                mni = i;
                mn = s[i];
            }
        }
        swap(s[j],s[mni]);
        p[j] = j;
        q[j] = mni;
        ans++;
    }
    
    for(int i = ans; i < m; ++i) p[i] = q[i] = 0;
    return ans;
}

// int main(){
//     int n = 5;
//     int arr[] = {-2,-1,2,0,1};
    
//     for(int i: arr) cout << i << " ";
//     cout << endl << endl;
    
//     int m = 7;
//     int x[] = {0,0,0,0,0,0,0};
//     int y[] = {0,0,0,0,0,0,0};
//     int p[m] = {0};
//     int q[m] = {0};
    
//     int r = findSwapPairs(n,arr,m,x,y,p,q);
//     cout << r << " rounds is need!\n";
//     for(int i = 0; i < m; ++i){
//         cout << "swap " << p[i] << " and " << q[i] << ".\n";
//     }
// }

컴파일 시 표준 에러 (stderr) 메시지

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:24:46: warning: unused parameter 'x' [-Wunused-parameter]
   24 | int findSwapPairs(int n, int s[], int m, int x[], int y[], int p[], int q[]) {
      |                                          ~~~~^~~
sorting.cpp:24:55: warning: unused parameter 'y' [-Wunused-parameter]
   24 | int findSwapPairs(int n, int s[], int m, int x[], int y[], int p[], int q[]) {
      |                                                   ~~~~^~~

• Subtask 1: 8 / 8
• Subtask 2: 12 / 12
• Subtask 3: 0 / 16
• Subtask 4: 0 / 18
• Subtask 5: 0 / 20
• Subtask 6: 0 / 26