#include #define SWAP(a, b) {\int t = a;\a = b;\b = t;\}void permutation(int* a, int b, int e) {int i;if (b == e) {for (i = 0; i < e; ++i) {printf("%d ", a);}printf("\n");} else {for (i = b; i < e; ++i) {SWAP(a, a);permutation(a, b + 1, e);SWAP(a, a);}... |