/* //1449 打印直角三角形 #include<iostream> #include<cstdio> #include<cstring> #include<cmath> using namespace std; int main(){ int a=0,n,l=1; cin>>n; for(int i=1;i<=n;i++){ for(int j=1;j<=i;j++){ cout<<'*'; } cout<<endl; } return 0; } //1450 打印反直角三角形 #include<iostream> #include<cstdio> #include<cstring> #include<cmath> using namespace std; int main(){ int a=0,n,l=0; cin>>n; l=n-1; for(int i=1;i<=n;i++){ for(int j=1;j<=l;j++){ cout<<' '; } for(int j=1;j<=i;j++){ cout<<'*'; } cout<<endl; l--; } return 0; } //1451 打印三角形 #include<iostream> #include<cstdio> #include<cstring> #include<cmath> using namespace std; int main(){ int a=0,n,l=0,o=0; cin>>n; l=n-1; o=1; for(int i=1;i<=n;i++){ for(int j=1;j<=l;j++){ cout<<' '; } for(int j=1;j<=o;j++){ cout<<'*'; } cout<<endl; l--; o+=2; } return 0; } //1452 打印菱形 #include<iostream> #include<cstdio> #include<cstring> #include<cmath> using namespace std; int main(){ int a=0,n,l=0,o=0; cin>>n; l=n-1; o=1; for(int i=1;i<=n;i++){ for(int j=1;j<=l;j++){ cout<<' '; } for(int j=1;j<=o;j++){ cout<<'*'; } cout<<endl; l--; o+=2; } o-=4; l=1; for(int i=1;i<=n;i++){ for(int j=1;j<=l;j++){ cout<<' '; } for(int j=1;j<=o;j++){ cout<<'*'; } cout<<endl; l++; o-=2; } return 0; }*/ //1453 打印沙漏 #include<iostream> #include<cstdio> #include<cstring> #include<cmath> using namespace std; int main(){ int a=0,n,l=0,o=0; cin>>n; l=0; o=n*2-1; for(int i=1;i<=n;i++){ for(int j=1;j<=l;j++){ cout<<' '; } for(int j=1;j<=o;j++){ cout<<'*'; } cout<<endl; l++; o-=2; } l=n-2; o=3; for(int i=1;i<n;i++){ for(int j=1;j<=l;j++){ cout<<' '; } for(int j=1;j<=o;j++){ cout<<'*'; } cout<<endl; l--; o+=2; } return 0; }