A * B Problem Plus
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Problem Description
Calculate A * B.
Input
Each line will contain two integers A and B. Process to end of file.
Note: the length of each integer will not exceed 50000.
Output
For each case, output A * B in one line.
Sample Input
1
2
1000
2
Sample Output
2
2000
全整數(shù)的 快速傅里葉變換FFT 加速 大整數(shù)乘法，使用本博客《
全整數(shù)無(wú)浮點(diǎn)運(yùn)算的 快速傅里葉變換FFT 加速 大整數(shù)乘法，整系數(shù)多項(xiàng)式乘法》一文中的代碼 256ms 水之。。。