How to print rhombus with for loop in c language

C language for loop printing diamond method: use two for loops to implement conditional judgment, the code is [int i,j;for(i=0; i=n-i-1&&j

C language for loop printing diamond method:

Method 1 (printing mainly with loop )

#include  void print(int n) { int i,j; for(i=1; i<=n; i++) { for(j=1; j<=n-i; j++) { printf(" "); } for(j=n-i+1; j=1; i--) { for(j=1; j<=(n-i); j++) { printf(" "); } for(j=n-i+1; j
      
Method 2: (Two fors, judge and implement based on conditions)
      
#include  //输出格式 void print(char ch) { putchar(ch); } //星号 void printstar(int n) { int i,j; //行，列 for(i=0; i<2*n-1; i++) { for(j=0; j<2*n-1; j++) { if(i=n-i-1&&j=i-n+1&&j<3*n-i-2) { print('*'); } else { print(' '); } } } print('\n'); } } void main() { int n; printf("---------开始打印符号---------\n"); printf("请输入数字:"); scanf("%d",&n); printstar(n); printf("---------结束打印符号---------\n"); }
      
Explanation: (2n-1)—(n-i-1) = n i
      
( 2n-1) — (-(n-i-1)) = 3n-i-2
      
Result:
      

      

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