'commit'

TangDou/LianXiTi50/19.cpp

@@ -0,0 +1,19 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    int n = 4;
+    for (int i = 1; i <= n; i++) {
+        for (int j = 1; j <= n - i; j++) printf(" ");
+        for (int j = 1; j <= 2 * i - 1; j++) printf("*");
+        printf("\n");
+    }
+
+    for (int i = n - 1; i >= 1; i--) {
+        for (int j = 1; j <= n - i; j++) printf(" ");
+        for (int j = 1; j <= 2 * i - 1; j++) printf("*");
+        printf("\n");
+    }
+    return 0;
+}