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  1. #include <stdio.h>
  2.  
  3. int main(void)
  4. {
  5.     int var_1, signflag = 0, res = 0;
  6.  
  7.     if (scanf("%d", &var_1) != 1) {
  8.         printf("Input error");
  9.         return 0;
  10.     }
  11.  
  12.     if (var_1 < 0) {
  13.         signflag = 1;
  14.         var_1 *= -1;
  15.     }
  16.  
  17.     while(var_1 > 10) {
  18.         int var_dump = var_1 / 10;
  19.         int pre_res = var_1 - (var_dump * 10);
  20.         res += pre_res;
  21.         res *= 10;
  22.         var_1 = var_dump;
  23.     }
  24.  
  25.     if (var_1 == 10) {
  26.     	var_1 /= 10;
  27.     	res *= 10;
  28.     	res += var_1;
  29.     } else {
  30.     	res *= 10;
  31.     	res += var_1;
  32.     }
  33.  
  34.  
  35.     if (signflag == 1) {
  36.         res *= -1;
  37.     }
  38.  
  39.     printf("%d", res);
  40.  
  41.     return 0;
  42. }
Success #stdin #stdout 0.01s 5316KB
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https://ideone.com/3u1pHS
Переворачиваем часло
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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