1, 2, 3, 4 the 4 digits that make up the number of distinct and no duplicates

Title: There are 1, 2, 3, 4 of these 4 digits, can be composed of a number of different and no repeat number of three digits? How much are they?

Program Analysis: Can be filled in hundreds, 10 digits, single-digit numbers are 1, 2, 3, 4. Form all permutations and then remove the arrangement that does not satisfy the condition

*/

#include <stdio.h>

int main (void)

{

int I, j, K;

for (i = 1; i < 5; i++)

{

for (j = 1; j < 5; J + +)

{

for (k = 1; k < 5; k++)

{

if (i!=j && i!=k && j!=k)

printf ("%d%d%d\n", i,k,j);

}

}

}

return 0;

}

C language Although in a few years ago to learn but that is not the systematic study of soy sauce, as long as the subject to pass on the line now decided to base the C to slowly grope for the king of C!

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