Reshape the Matrix
给一个2d数组,和r和c, 返回重构后的int[r][c].
class Solution {
public int[][] matrixReshape(int[][] nums, int r, int c) {
if(r*c != nums.length * nums[0].length)
return nums;
int[][] res = new int[r][c];
int k = 0;
int t = 0;
for(int i = 0; i < nums.length; i++) {
for(int j = 0; j < nums[0].length; j++) {
res[k][t] = nums[i][j];
if(t < c - 1) {
t++;
}
else {
t = 0;
k++;
}
}
}
return res;
}
}