题解 | #矩阵乘法#
矩阵乘法
http://www.nowcoder.com/practice/ebe941260f8c4210aa8c17e99cbc663b
Javascript代码，线性代数基础
let x = parseInt(readline())
let y = parseInt(readline())
let z = parseInt(readline())
let A = [], B = []
let m=x,n=y
let res = []
while(m--){
let temp = readline().split(' ')
A.push(temp.map(Number))
}
while(n--){
let temp = readline().split(' ')
B.push(temp.map(Number))
}
for(let i = 0;i<x;i++){
let temp = []
for(let j=0;j<z;j++){
let num = 0
for(let k=0;k<y;k++){
num+=A[i][k]*B[k][j]
}
temp.push(num)
}
res.push(temp.slice(0))
}
res.forEach(item=>{
print(item.join(' '))
})
