加密代码其实就这一句

v5 = (*((_BYTE *)v10 + v3) ^ 0x32) - 86; 

直接写脚本就行

#include<stdio.h>
int main() {
    int v8[10], v5;
    v8[0] = 167640836;
    v8[1] = 11596545;
    v8[2] = -1376779008;
    v8[3] = 85394951;
    v8[4] = 402462699;
    v8[5] = 32375274;
    v8[6] = -100290070;
    v8[7] = -1407778552;
    v8[8] = -34995732;
    v8[9] = 101123568;
    for (int i = 0; i < 41; i++)
    {
        v5 = (*((char*)v8 + i) + 86) ^ 0x32;
        printf("%c", v5);
    }
}

hgame{4ddit1on_is_a_rever5ible_0peration}