/**
 * @param {character[][]} board
 * @return {boolean}
 */
function isRepeat(arr) {
    let hash = {}
    for (let i = 0; i < arr.length; i++) {
        if (!isNaN(arr[i])) {
            if (hash[arr[i]]) {
                return false
            } else {
                hash[arr[i]] = 1
            }
        }

    }
    return true
}
var isValidSudoku = function (board) {
    let result
    let colArr = []
    let blockArr = []
    //每一行是否重复检测
    for (let i = 0; i < board.length; i++) {
        result = isRepeat(board[i])
        if (!result) {
            console.log('行重复')
            return false
        }
    }

    //每一列是否重复检测
    for (let i = 0; i < board.length; i++) {
        for (let j = 0; j < board[i].length; j++) {
            if (!colArr[j]) {
                colArr[j] = []
            }
            colArr[j].push(board[i][j])
        }
    }
    for (let i = 0; i < colArr.length; i++) {
        result = isRepeat(colArr[i])
        if (!result) {
            console.log('列重复')
            return false
        }
    }

    //3*3是否重复
    let block = 0
    for (let i = 0; i < board.length; i++) {
        let reset = block
        for (let j = 0; j < board[i].length; j++) {
            if (!blockArr[block]) {
                blockArr[block] = []
            }
            blockArr[block].push(board[i][j])
            if ((j + 1) % 3 === 0) {
                block++
            }
            if (j === 8) {
                block = reset
            }
        }
        if ((i + 1) % 3 === 0) {
            block += 3
        }
    }
    for (let i = 0; i < blockArr.length; i++) {
        result = isRepeat(blockArr[i])
        if (!result) {
            console.log('3*3重复')
            return false
        }
    }

    //以上三种检测都通过
    return true

};