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  1. #include <stdio.h>
  2.  
  3. int main(){
  4. 	int n, m;
  5. 	scanf("%d%d", &n, &m);
  6. 	if(n==0 && m==0){
  7. 		printf("(0, 0)在原點\n");
  8. 	}else if( n==0){
  9. 		printf("(%d, %d)在y軸上\n", n, m);
  10. 	}else if( m==0){
  11. 		printf("(%d, %d)在x軸上\n", n, m);
  12. 	}else if( n>0 && m>0){
  13. 		printf("(%d, %d)在第一象限內\n", n, m);
  14. 	}else if( n<0 && m>0){
  15. 		printf("(%d, %d)在第二象限內\n", n, m);
  16. 	}else if( n<0 && m<0){
  17. 		printf("(%d, %d)在第三象限內\n", n, m);
  18. 	}else if( n>0 && m<0){
  19. 		printf("(%d, %d)在第四象限內\n", n, m);
  20. 	}
  21.     return 0;
  22. }
  23.  
stdin
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-1  -2
compilation info 
prog.c: In function ‘main’:
prog.c:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result
stdout
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(-1, -2)在第三象限內
https://ideone.com/07mks
language:
C (gcc 8.3)
created:
14 years ago
visibility:
secret

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