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- void DFS (int x, int len) {
- sol[len++] = x;
- viz[x] = 1;
- for (int i = 1; i <= n; i++) {
- if (a[x][i] && viz[i] == 0) {
- DFS(i, len);
- viz[i] = 0;
- }
- }
- if (sol[0] == p && sol[len-1] == q) {
- for (int i = 0; i < len; i++) {
- printf("%d ", sol[i]);
- }
- printf("\n");
- }
- }
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