求二维数组的每行元素的最大值及位置

#include<iostream>
using namespace std;
int main()
{
	//求二维数组每行的最大值及位置:
	int arr[3][4] = { 0 };
	cout << "请输入12个数存入二维数组:" << endl;
	int i = 0;
	int j = 0;
	for (i = 0; i < 3; i++)
	{
		for (j = 0; j < 4; j++)
		{
			cin >> arr[i][j];
		}
	}
	int row = 0;
	int col = 0;
	int max = 0;
	for (i = 0; i < 3; i++)
	{
		row = i;
		col = 0;
		max = arr[i][0];
		for (j = 1; j < 4; j++)
		{
			if (arr[i][j] > max)
			{
				max = arr[i][j];
				col = j;
			}
		}
		cout << "第" << i << "行的" << "第" << col << "列" << "最大,值为" << max << endl;
	}
	return 0;
}