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#include <stdio.h>
#include <stdlib.h>
char labels[26] = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i',
'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r',
's', 't', 'u', 'v', 'w', 'x', 'y', 'z'};
void matrix_traverse(int n, int graph[n][n], int visited[n], int vertex) {
printf("->(%c)", labels[vertex]);
visited[vertex] = 1;
for (int edge = 0; edge < n; ++edge) {
if (!visited[edge] && graph[vertex][edge] > 0) {
graph[vertex][edge] = 0;
matrix_traverse(n, graph, visited, edge);
graph[edge][vertex] = 0;
printf("->(%c)", labels[vertex]);
}
}
for (int edge = 0; edge < n; ++edge) {
if (graph[vertex][edge] > 0 && graph[edge][vertex] > 0) {
graph[vertex][edge] = 0;
matrix_traverse(n, graph, visited, edge);
graph[edge][vertex] = 0;
printf("->(%c)", labels[vertex]);
}
}
}
void matrix_inspect(int n, int graph[n][n]) {
printf("\n");
printf("| ");
for (int i = 0; i < n; ++i)
printf("|%c", labels[i]);
printf("|\n");
for (int i = 0; i < n; ++i) {
printf("|%c|", labels[i]);
for (int j = 0; j < n; ++j)
printf("%d|", graph[i][j]);
printf("\n");
}
}
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