求C语言编程1+2的程序

#include<桐行stdio.h>晌扮

int main()

{

int a,b,c

a=1b=2

c=a+b

printf("宴轮灶%d",c)

return 0

}

#include <stdio.h>

void main()

{

float i,j,sum

int i=1+2

printf("结友段果世告罩为搜闹%f",i)

}

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