Codeforces Round #387 (Div. 2), problem: (C) Servers Solution in C/C++

Codeforces Round #387 (Div. 2), problem: (C) Servers Solution in C/C++

#include<stdio.h>
int main(){
int n,q,a[100]={0},t,k,d,i,j,s,f;
scanf("%d%d",&n,&q);
while(q>0)
{ scanf("%d%d%d",&t,&k,&d);
  s=0;
  for(i=0;i<n;i++)
  { if(a[i]<t)
      a[i]=0;
  }
  j=0;
  for(i=0;i<n;i++)
  {
      if(a[i]==0)
        j++;
  }
  if(j<k)
    printf("-1\n");
  else
  {for(i=0,j=0;i<n&&j<k;i++)
    { if(a[i]==0)
       { s+=i+1;
         a[i]=t+d-1;j++;}
   }
        printf("%d\n",s);}

   q--;
}
return 0;
}