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Re:是不是没有disjoint?In Reply To:是不是没有disjoint? Posted by:TN at 2005-04-09 09:47:46 无语了……找不到一个能去所有点的点就disjoint void solve(void) { int i, j, k, m; if(N == 1) { puts("1 0"); return; } for(i = 0; i < N; i++) { for(j = 0; j < N; j++) { if(j != i) { for(k = 0; k < N; k++) { if(k != i && k != j) { int temp = dist[i][k] + dist[k][j]; if(dist[i][k] > 0 && dist[k][j] > 0 && (dist[i][j] < 0 || dist[i][j] > temp)) { dist[i][j] = temp; } } } } } } for(i = 0; i < N; i++) { for(j = 0; j < N; j++) { if(i != j && dist[i][j] < 0) { break; } } if(j < N)//这个点不能所有点都去 { continue; } for(j = 0; j < N; j++) { if(j != i && dist[i][j] > dist[i][i]) { dist[i][i] = dist[i][j];//dist[i][i]记最小值 } } } k = -1; m = 0x7FFFFFFF; for(i = 0; i < N; i++) { if(dist[i][i] > 0 && dist[i][i] < m) { k = i; m = dist[i][i]; } } if(k >= 0) { printf("%d %d\n", k + 1, m); } else { puts("disjoint"); } } Followed by:
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