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+ = (, , , )

n + = 13 , n=n+13

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* = ( )

n*=2 n = n*2

/ = .. ..

% = .. ..

<<=; >>=; | =; & =; ^ =; ~=;

 

 

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:

1. ;

2. int x, y;

3. count = 0.0;

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sum = sum+count;

var = (var + 10)/4;

5.

printf(" \n");

6. ,

x=7, y=10;

:

 

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if... else.

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1;

Else if( 2)

2;

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3;

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else if, .

if( 1) {

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1;

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Else 2;

 

//

#include <stdio.h>

#define LIMIT 12600

#define MAX 25200

#define NORMA 60

#define PEOPLE 20

void main(void)

{

float kwh; //

float bill; //

int p,house;

printf(" /.\n);

scanf("%f",&kwh);

printf(" .\n);

scanf("%d",&p);

house=NORMA+PEOPLE*p;

if(kwh<=house)

bill=kwh*LIMIT;

else

bill= house*LIMIT + (kwh-house)*MAX;

printf(" %f %f.\n",kwh,bill);

}





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