那么你应该是没注意到 0≤ai≤1090 \le a_i \le 10^90≤ai≤109
把代码中的tmp[i] = 100 * a[i] - x * b[i]
tmp[i] = 100 * a[i] - x * b[i]
改为tmp[i] = 1ll * 100 * a[i] - x * b[i]
tmp[i] = 1ll * 100 * a[i] - x * b[i]
