1476-subrectangle-queries

/**
 * @param {number[][]} rectangle
 */
var SubrectangleQueries = function(rectangle) {
    grid = rectangle;
};

/**
 * @param {number} row1
 * @param {number} col1
 * @param {number} row2
 * @param {number} col2
 * @param {number} newValue
 * @return {void}
 */
SubrectangleQueries.prototype.updateSubrectangle = function(row1, col1, row2, col2, newValue) {
    for(let A=row1; A<=row2; A++){
        for(let B=col1; B<=col2; B++){
            grid[A][B] = newValue;
        }
    }
    return -1;
};

/**
 * @param {number} row
 * @param {number} col
 * @return {number}
 */
SubrectangleQueries.prototype.getValue = function(row, col) {
    return grid[row][col];
};

/**
 * Your SubrectangleQueries object will be instantiated and called as such:
 * var obj = new SubrectangleQueries(rectangle)
 * obj.updateSubrectangle(row1,col1,row2,col2,newValue)
 * var param_2 = obj.getValue(row,col)
 */