คำอธิบายโปรแกรม
พิมพ์รูปแบบลูกศรขวาและซ้าย
อัลกอริทึม
ยอมรับจำนวนแถวเพื่อพิมพ์รูปแบบลูกศรซ้ายและขวา
Print Upper Part of the Arrow with Stars Patterns Print Inverted Right Triangle with Stars Patterns Print Bottom Part of the Arrow with Stars Patterns Print the Right Triangle with Stars Patterns
ตัวอย่าง
/*Program to print the Left and right arrow pattern*/ #include<stdio.h> int main() { int r, c, rows; //Left Arrow Pattern int r1, c1, rows1; //Right Arrow Pattern clrscr(); printf("Enter number of rows to print the Left Arrow Pattern: "); scanf("%d", &rows); printf("\n"); printf("The Left Arrow Pattern is:"); printf("\n"); for(r=1; r<rows; r++){ for(c=1; c<=(rows-r); c++){ printf(" "); } for(c=r;c<=rows; c++){ printf("*"); } printf("\n"); } for(r=1; r<=rows; r++){ for(c=1; c<r; c++){ printf(" "); } for(c=1; c<=r; c++){ printf("*"); } printf("\n"); } printf("Enter number of rows to print the Right Arrow Pattern: "); scanf("%d", &rows1); printf("\n"); printf("The Right Arrow Pattern is:"); printf("\n"); for(r1=1; r1<rows1; r1++){ for(c1=1; c1<=(2*r1-2); c1++){ printf(" "); } for(c1=r1; c1<=rows1; c1++){ printf("*"); } printf("\n"); } for(r1=1; r1<=rows1; r1++){ for(c1=1; c1<=(2*rows1 - 2*r1); c1++){ printf(" "); } for(c1=1; c1<=r1; c1++){ printf("*"); } printf("\n"); } getch(); return 0; }
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