C++菱形範例

此為幫人代工之物，我猜以後還會有類似的東西，先記下

#include <cstdlib>
#include <iostream>
using namespace std;

int main(int argc, char *argv[])
{
int h,i,j,k,v;
cout << "請輸入數字:"<<endl;
cin >> v;
for(i=1;i<=v*2-1;i++){
   for(j=0;j<abs(v-i);j++){
        cout<<" ";
   }
   h=(i<=v)?(i*2-1):((v*2-i)*2-1);
   for(k=0;k<h;k++){
       cout<< "*" ;
    }
   cout << endl;
}
system("PAUSE");
return EXIT_SUCCESS;
}
其他解:
#include <stdio.h>
#include <stdlib.h>
int main()
{
  int n=5,i=0,j=-1;
  while(++i<n*2){
    j=-1;
    while(++j<n*2)
       printf((j>abs(n-i)-1&&j<n*2-1-abs(n-i))?"*":" ");
    printf("\n");
  }
  system("pause");
}
一行版:
int main()
{
int n=4,i=-1;
char output[n*2+2];
output[n*2+1]=0;
while(i++＜n*2)
printf("%s\n",memset(memset(output,32,n*2+1)+abs(n-i),42,(n-abs(n-i))*2+1)-abs(n-i));
system("pause");
}