/in/ex4.c:7:5: warning: "/*" within comment [-Wcomment]
     /*int time_t=time(NULL);
      
/in/ex4.c: In function 'main':
/in/ex4.c:40:13: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'time_t * {aka long int *}' [-Wformat=]
     scanf("%d",&rawtime);
             ^