#include<stdio.h>
int main()
{
int X,l,m,j;
float n,i,a,b,c,d,o,avg,avg1,ar[2],br[2];
while(1)
{
j=0;
for(i=0;i<100;i++){
scanf("%f",&n);
if (n >= 0 && n <= 10){
ar[j]=n;
j++;
}
else printf("nota invalida\n");
if(j==2){
avg = (ar[0]+ar[1])/2;
printf("media = %.2f\n",avg);
break;
}
}
for(l=0;l< 100;l++){
scanf("%d",&X);
printf("novo calculo (1-sim 2-nao)\n");
if(X==1 || X == 2)break;
}
if(X==1)continue;
else if(X==2)break;
}
return 0;
}
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