apk放入jadx反编译直接进入源代码中MainActivity主函数x是用来判断用户输入是否正确输入正确后才能进行后后面的y即flag计算x和y两个加密无关#include stdio.h #include string.h int main() { char a[] {T, h, i, s, I, s, T, h, e, F, l, a, g, H, o, m, e}; char b[] {p, v, k, q, {, m, 1, 6, 4, 6, 7, 5, 2, 6, 2, 0, 3, 3, l, 4, m, 4, 9, l, n, p, 7, p, 9, m, n, k, 2, 8, k, 7, 5, }}; char x[18], y[39]; for (int i 0; i 17; i) { if ((a[i] I a[i] A) || (a[i] i a[i] a)) { x[i] a[i] 18; } else if ((a[i] A a[i] Z) || (a[i] a a[i] z)) { x[i] a[i] - 8; } else { x[i] a[i]; } } x[17] \0; for (int i2 0; i2 38; i2) { if ((b[i2] A b[i2] Z) || (b[i2] a b[i2] z)) { y[i2] b[i2] 16; if ((y[i2] Z y[i2] a) || y[i2] z) { y[i2] y[i2] - 26; } } else { y[i2] b[i2]; } } y[38] \0; printf(%s\n%s, x, y); return 0; }第一行输出为x第二行输出为y正确输出应该是flag{c164675262033b4c49bdf7f9cda28a75}