Index through 2d array
int[][]x;//define
for(int i=0;i<x.length;i++){
for(int j=0;j<x[i].length;j++){
//dp something with x[i][j]
}
}Index through 2d array
int[][]x;//define
for(int i=0;i<x.length;i++){
for(int j=0;j<x[i].length;j++){
//dp something with x[i][j]
}
}how do i index into array
>>> x = np.arange(10)
>>> x[2]
2
>>> x[-2]
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