宁波市赛2014小李发奖金

Posted 2022-02-01 baoyihan

题面传送门

贪心

#include <cstdio>
#include <iostream>
#include <algorithm> 
using namespace std;

int a[50000];

int main() 
    int n;
    cin >> n;
    for (int i = 0; i < n; i++)
        cin >> a[i];
    sort(a, a + n);
    int ans = 0;
    for (int i = 0; i < n-1; i++)
        if (a[i+1]-1 >= a[i]) continue;
        else 
            ans = ans + a[i] - a[i+1] + 1;
            a[i+1] = a[i] + 1;
        
    cout << ans << endl;
    return 0;