Subrectangle Queries
给一个2d矩阵, 和一个update, 一个getValue方法, 实现这两个方法,
class SubrectangleQueries {
int[][] rectangle;
public SubrectangleQueries(int[][] rectangle) {
this.rectangle = rectangle;
}
public void updateSubrectangle(int row1, int col1, int row2, int col2, int newValue) {
for(int i = row1; i <= row2; i++) {
for(int j = col1; j <= col2; j++) {
rectangle[i][j] = newValue;
}
}
}
public int getValue(int row, int col) {
return rectangle[row][col];
}
}
/**
* Your SubrectangleQueries object will be instantiated and called as such:
* SubrectangleQueries obj = new SubrectangleQueries(rectangle);
* obj.updateSubrectangle(row1,col1,row2,col2,newValue);
* int param_2 = obj.getValue(row,col);
*/