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- #include <stdio.h>
- int main()
- {
- int n, x, tmp1, tmp2, cifra_n, cifra_x, skip;
- scanf("%d %d", &n, &x);
- --n;
- while(n > 0)
- {
- tmp1 = n;
- while(tmp1 > 0)
- {
- cifra_n = tmp1 % 10;
- tmp1 /= 10;
- tmp2 = x;
- skip = 0;
- while(tmp2 > 0) {
- cifra_x = tmp2 % 10;
- tmp2 /= 10;
- if(cifra_n == cifra_x) {
- skip = 1;
- break;
- }
- }
- if(skip == 1)
- break;
- }
- if(skip == 1) {
- n--;
- if(n == 0) {
- printf("0");
- break;
- }
- } else {
- if(cifra_n != cifra_x) {
- printf("%d", n);
- break;
- }
- }
- }
- return 0;
- }
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