floyd算法求最短路径c

以下是使用C语言实现Floyd算法求最短路径的示例代码：

#include <stdio.h>
#define INF 99999

void floyd(int graph[][4], int n) {
    int dist[n][n], i, j, k;
    for (i = 0; i < n; i++) {
        for (j = 0; j < n; j++) {
            dist[i][j] = graph[i][j];
        }
    }
    for (k = 0; k < n; k++) {
        for (i = 0; i < n; i++) {
            for (j = 0; j < n; j++) {
                if (dist[i][k] + dist[k][j] < dist[i][j]) {
                    dist[i][j] = dist[i][k] + dist[k][j];
                }
            }
        }
    }
    printf("最短路径矩阵：\n");
    for (i = 0; i < n; i++) {
        for (j = 0; j < n; j++) {
            if (dist[i][j] == INF) {
                printf("INF ");
            } else {
                printf("%d ", dist[i][j]);
            }
        }
        printf("\n");
    }
}

int main() {
    int graph[4][4] = {{0, 5, INF, 10},
                       {INF, 0, 3, INF},
                       {INF, INF, 0, 1},
                       {INF, INF, INF, 0}};
    floyd(graph, 4);
    return 0;
}

输出结果为：

最短路径矩阵：
0 5 8 9 
INF 0 3 4 
INF INF 0 1 
INF INF INF 0