43 lines
516 B
C
43 lines
516 B
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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char c[15];
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int mask = 0;
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int is_equal () {
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int j = 0;
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mask = 0;
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for (j=0; j<14; j++){
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int n = c[j] - 'a';
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if (mask & (1 << n))
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return 0;
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mask |= (1<<n);
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}
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return 1;
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}
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int main () {
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int k = 0;
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int j = 1;
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char f;
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c[15] = 0;
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while (j < 5) {
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c[k] = getchar();
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k++;
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j++;
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}
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while ((f = getchar()) != EOF) {
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k %=14;
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printf("%d %s f:%c\n",k,c,f);
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if (is_equal()) break;
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c[k] = f;
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k++;
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j++;
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}
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printf("%d\n", j-1);
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}
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