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  1. #include<stdio.h>
  2. int main()
  3. {
  4. int X,l,m,j;
  5. float n,i,a,b,c,d,o,avg,avg1,ar[2],br[2];
  6. while(1)
  7. {
  8. j=0;
  9. for(i=0;i<100;i++){
  10. scanf("%f",&n);
  11. if (n >= 0 && n <= 10){
  12. ar[j]=n;
  13. j++;
  14. }
  15. else printf("nota invalida\n");
  16. if(j==2){
  17. avg = (ar[0]+ar[1])/2;
  18. printf("media = %.2f\n",avg);
  19. break;
  20. }
  21. }
  22. for(l=0;l< 100;l++){
  23. scanf("%d",&X);
  24. printf("novo calculo (1-sim 2-nao)\n");
  25. if(X==1 || X == 2)break;
  26. }
  27. if(X==1)continue;
  28. else if(X==2)break;
  29.  
  30. }
  31. return 0;
  32. }
Success #stdin #stdout 0s 15240KB
stdin
-3.5
3.5
11.0
10.0
4
1
8.0
9.0
2
stdout
nota invalida
nota invalida
media = 6.75
novo calculo (1-sim 2-nao)
novo calculo (1-sim 2-nao)
media = 8.50
novo calculo (1-sim 2-nao)