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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <time.h>
  4. int main(){
  5. float r;
  6. srand(time(NULL));
  7. r=rand();
  8. for(int i=0;i<100;i++){
  9.  
  10. printf("%f\n",r);
  11. r=(float)rand()/RAND_MAX;
  12. if(r<1.0/3.0){
  13. printf("Hello\n");
  14. }else{
  15. printf("Bye\n");
  16. }
  17. }
  18.  
  19. }
  20.  
Success #stdin #stdout 0s 5288KB
stdin
Standard input is empty
stdout
1788567552.000000
Bye
0.938797
Hello
0.129724
Bye
0.876595
Hello
0.244833
Hello
0.123931
Hello
0.070735
Bye
0.977445
Hello
0.147679
Bye
0.842590
Hello
0.156406
Bye
0.383405
Hello
0.124106
Bye
0.503337
Bye
0.367657
Hello
0.144445
Bye
0.919138
Bye
0.596499
Hello
0.068343
Bye
0.443810
Bye
0.562457
Bye
0.548253
Bye
0.696179
Bye
0.492324
Hello
0.253967
Bye
0.989107
Bye
0.775040
Hello
0.192971
Bye
0.542898
Bye
0.932623
Bye
0.831237
Bye
0.375764
Bye
0.871419
Bye
0.960962
Hello
0.252359
Hello
0.116252
Hello
0.084892
Hello
0.323094
Hello
0.093697
Hello
0.232571
Hello
0.165684
Hello
0.250103
Bye
0.615977
Hello
0.289791
Bye
0.753440
Bye
0.983634
Bye
0.434235
Bye
0.672579
Bye
0.580133
Bye
0.502578
Hello
0.116388
Hello
0.142590
Hello
0.050831
Bye
0.812567
Bye
0.634914
Hello
0.304797
Bye
0.801674
Bye
0.409954
Bye
0.497768
Bye
0.344572
Bye
0.342577
Hello
0.329006
Bye
0.720336
Hello
0.213996
Hello
0.289967
Bye
0.972695
Hello
0.330248
Bye
0.374860
Hello
0.295790
Bye
0.423945
Bye
0.607431
Bye
0.461474
Bye
0.674048
Hello
0.223408
Bye
0.751265
Bye
0.427488
Hello
0.207042
Hello
0.185500
Hello
0.100067
Bye
0.787174
Bye
0.688078
Hello
0.216455
Bye
0.929764
Bye
0.738908
Hello
0.029023
Bye
0.564678
Hello
0.043706
Bye
0.830697
Bye
0.974633
Bye
0.541474
Hello
0.175268
Hello
0.317210
Bye
0.870479
Bye
0.895604
Bye
0.531206
Hello
0.160446
Bye
0.868300
Bye
0.861454
Bye
0.535306
Hello
0.164090
Hello