C#程序查找整数数组中的所有重复元素
首先,使用重复元素设置数组。
int[] arr = {24,
10,
56,
32,
10,
43,
88,
32
};
现在声明一个Dictionary并遍历数组以获取重复的元素。
var d = new Dictionary < int, int > ();foreach(var res in arr) {
if (d.ContainsKey(res))
d[res]++;
else
d[res] = 1;
}
示例
using System;using System.Collections.Generic;
namespace Demo {
public class Program {
public static void Main(string[] args) {
int[] arr = {
24,
10,
56,
32,
10,
43,
88,
32
};
var d = new Dictionary < int, int > ();
foreach(var res in arr) {
if (d.ContainsKey(res))
d[res]++;
else
d[res] = 1;
}
foreach(var val in d)
Console.WriteLine("{0} occurred {1} times", val.Key, val.Value);
}
}
}
输出结果
24 occurred 1 times10 occurred 2 times
56 occurred 1 times
32 occurred 2 times
43 occurred 1 times
88 occurred 1 times
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