下面程序运行时从键盘上输入:1 2 3↙，其输出结果是( )。#include int main() {Qint a[3][2] = { 0 }, (*ptr)[2], i, j; for ( i = 0; i < 2; i++ ) { ptr = a + i; scanf( "%d", ptr ); ptr++; } Qfor ( i = 0; i < 3; i++ ) for ( j = 0; j < 2; j++ ) printf( "%d", a[i][j] ); return(0); }