[V&N2020 公开赛] strangeCpp

[V&N2020 公开赛]strangeCpp

#include 

int main(int argc, char const *argv[])
{
    int i,j,result = 0x242EE21A;
    unsigned int tmp = 0;
    unsigned char ida_chars[] =
    {
    0x26, 0x2C, 0x21, 0x27, 0x3B, 0x0D, 0x04, 0x75, 0x68, 0x34, 
    0x28, 0x25, 0x0E, 0x35, 0x2D, 0x69, 0x3D, 0x6F, 0x6D
    };
    for (i = 0; i <= 0xDE02EF; ++i)
    {
        tmp = (i << 8) ^ (i >> 12);
        tmp *= 291;
        if (tmp == result)
        {
            printf("%d\n", i);
            break;
        } 
    }
    for(j = 0;j < 17; j++){
        printf("%c",i ^ ida_chars[j]);
    }
    putchar('\n');
    return 0;
}

根据提示

 

计算出这个值的ma5，即为flag