打印沙漏

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#include <stdio.h> using namespace std; int main(int argc, const char * argv[]){     int n;     char c;     scanf("%d %c",&n,&c);     int increase=6;     int sum=1,layer=1;     while(sum+increase<=n){         sum+=increase;         increase+=4;         layer+=1;     }     increase-=4;     for(int i=0;i<layer;i++){         for(int j=0;j<i;j++){             printf(" ");         }         for(int j=0;j<(increase-i*4)/2;j++){             printf("%c",c);         }                   printf("\n");     }     for(int i=layer-2;i>=0;i--){         for(int j=0;j<i;j++){             printf(" ");         }         for(int j=0;j<(increase-i*4)/2;j++){             printf("%c",c);         }                   printf("\n");     }     printf("%d",n-sum);     return 0; }

 

注意：每一行后没是没有空格的