First Fit Memory Management Algorithm

#include<stdio.h>
#include<conio.h>

int main()
{
 int *Frag,*Files,*Block,nFile,nFrag,nBlock,i,j;
 int *FFile,*FBlock;
 int tmp;
 //Take Input of Block Size Information
 printf("\nEnter the Number of Blocks:");
 scanf("%d",&nBlock);
 Block=(int*)malloc(sizeof(int)*nBlock);
    FBlock=(int*)malloc(sizeof(int)*nBlock);
 for(i=1;i<=nBlock;i++)
 {
   printf("\nBlock-%d Size :",i);
   scanf("%d",&Block[i]);
    }
    //Take Input Of File Information
 printf("\nEnter the Number of File:");
 scanf("%d",&nFile);
 
 nFrag=nFile;
 Frag=(int*)malloc(sizeof(int)*nFrag);  //Contains the Fragmentation Value
 Files=(int*)malloc(sizeof(int)*nFile); //Contains the File size
 FFile=(int*)malloc(sizeof(int)*nFile); //Contains the Block Number
 
 for(i=1;i<=nFile;i++)
 {
  FFile[i]=-1;
 }
 
 for(i=1;i<=nFile;i++)
 {
   printf("\nFile-%d Size :",i);
   scanf("%d",&Files[i]);
    }
 
 for(i=1;i<=nFile;i++)
 {
  for(j=1;j<=nBlock;j++)
  {
         if(FBlock[j]!=1)
   {
      tmp=Block[j]-Files[i];
      if(tmp>=0)
      {
         FBlock[j]=1;
         FFile[i]=j;
         Frag[i]=tmp;
         break;
      }    
   }  
  }
 }
 printf("\nFile_no:\tFile_size :\tBlock_no:\tBlock_size:\tFragement");
 for(i=1;i<=nFile;i++)
 {
    if(FFile[i]!=-1)  //Check File is assigned a block
    printf("\n%d\t\t%d\t\t%d\t\t%d\t\t%d",i,Files[i],FFile[i],Block[FFile[i]],Frag[i]);
    else
    printf("\n%d\t\t%d\t\t%s\t\t%s\t\t%s",i,Files[i],NULL,NULL,NULL);
 }
  
 return 0;
}