1351.统计有序矩阵中的负数.js

/**
 * @param {number[][]} grid
 * @return {number}
 */
var countNegatives = function(grid) {
    let result = 0;
    for (let i = 0; i < grid.length; i++) {
        for (let j = 0; j < grid[0].length; j++) {
            if (grid[i][j] < 0) {
                result += grid[0].length - j;
                break;
            }
        }
    }
    return result;
};