最后exp：

#include <stdio.h>

int main(void)
{
    unsigned char ida_chars[] =
        {
                  128, 255, 255, 255, 255, 255, 255, 255,  89,   0, 
                0,   0,   0,   0,   0,   0,  35,   0,   0,   0, 
                0,   0,   0,   0,  53,   0,   0,   0,   0,   0, 
                0,   0,  34,   0,   0,   0,   0,   0,   0,   0, 
                  115,   0,   0,   0,   0,   0,   0,   0, 141, 255, 
                  255, 255, 255, 255, 255, 255,  26,   0,   0,   0, 
                0,   0,   0,   0,  81,   0,   0,   0,   0,   0, 
                0,   0,  93,   0,   0,   0,   0,   0,   0,   0, 
                  48,   0,   0,   0,   0,   0,   0,   0, 232, 255, 
                  255, 255, 255, 255, 255, 255,  87,   0,   0,   0, 
                0,   0,   0,   0,  38,   0,   0,   0,   0,   0, 
                0,   0, 246, 255, 255, 255, 255, 255, 255, 255, 
                7,   0,   0,   0,   0,   0,   0,   0, 198, 255, 
                  255, 255, 255, 255, 255, 255, 146, 255, 255, 255, 
                  255, 255, 255, 255,  94,   0,   0,   0,   0,   0, 
                0,   0, 220, 255, 255, 255, 255, 255, 255, 255, 
                  131, 255, 255, 255, 255, 255, 255, 255,  31,   0, 
                   0,   0,   0,   0,   0,   0, 118,   0,   0,   0, 
                0,   0,   0,   0, 146, 255, 255, 255, 255, 255, 
                  255, 255,  37,   0,   0,   0,   0,   0,   0,   0, 
                   15,   0,   0,   0,   0,   0,   0,   0, 101,   0, 
                0,   0,   0,   0,   0,   0, 251, 255, 255, 255, 
                  255, 255, 255, 255,  46,   0,   0,   0,   0,   0, 
                0,   0,  77,   0,   0,   0,   0,   0,   0,   0, 
                  107,   0,   0,   0,   0,   0,   0,   0,  69,   0, 
                0,   0,   0,   0,   0,   0,   3,   0,   0,   0, 
                0,   0,   0,   0, 135, 255, 255, 255, 255, 255, 
                  255, 255, 233, 255, 255, 255, 255, 255, 255, 255, 
                  159, 255, 255, 255, 255, 255, 255, 255,  34,   0, 
                0,   0,   0,   0,   0,   0
        };
    unsigned char a[256] = {
                  0x1A, 0x32, 0x4A, 0x3B, 0x30, 0xA5, 0x7F, 0xF0, 0xC4, 0x48, 
                  0xE5, 0x52, 0xC7, 0x53, 0xC0, 0x2D, 0xBE, 0xEC, 0x6D, 0x35, 
                  0xB1, 0x04, 0x18, 0x2E, 0xB5, 0x44, 0x15, 0x57, 0xDC, 0x9F, 
                  0xE2, 0x42, 0xFF, 0x22, 0x4D, 0xA6, 0x33, 0x5F, 0x5C, 0x8E, 
                  0x3F, 0x4C, 0xA8, 0xFE, 0x1C, 0x7E, 0x24, 0x6C, 0x6A, 0x9C, 
                  0x67, 0xA1, 0x50, 0xC5, 0x47, 0x02, 0xC1, 0x26, 0x16, 0x55, 
                  0xC6, 0xCD, 0xAA, 0x8A, 0xD1, 0x74, 0x77, 0xD8, 0x68, 0xFC, 
                  0x19, 0xCC, 0xE7, 0x88, 0xB7, 0xE6, 0x3E, 0x70, 0x86, 0x9E, 
                  0x98, 0xE4, 0x58, 0x56, 0xCA, 0x95, 0xB2, 0x51, 0xAF, 0xD3, 
                  0x6B, 0x28, 0x8B, 0xEE, 0xBC, 0x9B, 0x85, 0x62, 0x65, 0x20, 
                  0xE0, 0x84, 0xBF, 0x25, 0x59, 0xBA, 0x46, 0xB8, 0x2A, 0x2B, 
                  0xF1, 0x3D, 0xB0, 0x7A, 0xEB, 0x38, 0x5A, 0x41, 0x8D, 0x0C, 
                  0x07, 0x81, 0x79, 0x12, 0x40, 0x1B, 0xF8, 0xED, 0x82, 0x8F, 
                  0xD4, 0x94, 0xC8, 0x0E, 0xE3, 0x10, 0xB4, 0x39, 0x3C, 0x54, 
                  0x5B, 0x4F, 0xF9, 0xFA, 0x08, 0xBD, 0xF4, 0x5D, 0x91, 0x1F, 
                  0x7C, 0x8C, 0x66, 0xCE, 0x7B, 0x99, 0xC3, 0xD6, 0x29, 0xA2, 
                  0xAB, 0xC9, 0x4E, 0xCF, 0xDB, 0xF6, 0xA3, 0x03, 0xB9, 0xA7, 
                  0xEA, 0x69, 0x05, 0x1D, 0xEF, 0x0B, 0x23, 0x11, 0x37, 0x21, 
                  0x1E, 0xBB, 0x17, 0xD2, 0xB3, 0xDE, 0x2C, 0x63, 0x64, 0x09, 
                  0x78, 0x61, 0xCB, 0xAD, 0x9A, 0xA4, 0xF3, 0x0A, 0xA0, 0x14, 
                  0xF2, 0x92, 0x0D, 0x5E, 0xA9, 0xD5, 0x90, 0x96, 0x6F, 0x36, 
                  0xFD, 0x76, 0x45, 0xDA, 0x01, 0xF5, 0x0F, 0xB6, 0x34, 0x3A, 
                  0xDD, 0xD0, 0xD7, 0xAC, 0xFB, 0x80, 0xDF, 0x27, 0x13, 0x93, 
                  0x87, 0x72, 0x89, 0x49, 0x73, 0x71, 0x7D, 0x06, 0x9D, 0x00, 
                  0x83, 0xE8, 0xC2, 0x75, 0xAE, 0xF7, 0x97, 0x60, 0xE1, 0xD9, 
                  0x2F, 0x6E, 0x4B, 0x31, 0xE9, 0x43
            };
    int i = 0, v6 = 0, v7 = 0, v5 = 0, ans[37] = {0}, j = 0;
    char flag[37] = {0};

    for(i = 0; i < 296; i += 8)
    {
        ans[j++] = *(long int *)(&ida_chars[i]);
    }

    for(i = 0; i < 37; i++)
    {
        v6 = (unsigned char)(((unsigned int)((signed int)(v6 + 1) >> 31) >> 24) + v6 + 1) - ((unsigned int)((signed int)(v6 + 1) >> 31) >> 24);
        v5 = (unsigned int)((v7 + a[v6]) >> 31) >> 24;
        v7 = (unsigned char)(v5 + v7 + a[v6]) - v5;
        int temp = a[v6];
        a[v6] = a[v7];
        a[v7] = temp;

        flag[i] = ans[i]^a[(unsigned char)(a[v6] + a[v7])];    
    }

    puts(flag);

    return 0;    
}