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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. #define MAXLEN 100
  5.  
  6. char toC(int x){
  7.     char res = 0;
  8.     int i;
  9.     for(i = 0; i < 8; ++i) res |= x & (1<<i);
  10.     return res;
  11. }
  12.  
  13. int main(int argc, char** argv){
  14.     int i, j, k;
  15.     int f[1<<16] = {};
  16.     for(i = 1; i < argc; ++i){
  17.         FILE *fp = fopen(argv[i], "r");
  18.         char str[MAXLEN];
  19.         fgets(str, MAXLEN, fp);
  20.         for(j = 0; str[j]; ++j){
  21.             int x = 0;
  22.             for(k = 0; k < 8; ++k) x |= str[j] & (1<<k);
  23.             if(str[j] < 0){
  24.                 x <<= 8;
  25.                 ++j;
  26.                 for(k = 0; k < 8; ++k) x |= str[j] & (1<<k);
  27.             }
  28.             f[x] = 1;
  29.         }
  30.     }
  31.     for(i = 1; i < (1<<16); ++i){
  32.         if(f[i] && i != '\n'){
  33.             if(i >> 8) putchar(toC(i>>8));
  34.             printf("%c\n", toC(i&0xFF));
  35.         }
  36.     }
  37. }
Success #stdin #stdout 0.02s 1844KB
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https://ideone.com/lOWMo
language:
C (gcc 8.3)
created:
12 years ago
visibility:
public

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