main()                                                      
   {                                                           
       int count, i;                                           
       float weight, height;                                   
       count = 0;                                              
       printf("Enter weight and height for 10 boys\n");        
                                                               
       for (i =1; i <= 10; i++)                                
       {                                                       
          scanf("%f %f", &weight, &height);                    
          if (weight < 50 && height > 170)                     
             count = count + 1;                                
       }                                                       
       printf("Number of boys with weight < 50 kgs\n");        
       printf("and height > 170 cm = %d\n", count);            
   }                                                        
                                                    
                                                               
   
Output                                                      
                                                               
   Enter weight and height for 10 boys                         
   45  176.5                                                   
   55  174.2                                                   
   47  168.0                                                   
   49  170.7                                                   
   54  169.0                                                   
   53  170.5                                                   
   49  167.0                                                   
   48  175.0                                                   
   47  167                                                     
   51  170                                                     
   Number of boys with weight < 50 kgs                         
   and height > 170 cm = 3