Перевод языка

помогите певести с Borland C++ 3.1 на Visual c++

#include <stdio.h>
long i,h1,m1,h2,m2,t1,t2,t,max,m[1500];
void main(){
for(i=0;i<1440;i++) m=0;
FILE *f=fopen("INPUT.TXT","r");
while(!feof(f)){
if(fscanf(f,"%ld%ld%ld%ld",&h1,&m1,&h2,&m2)<4) break;
t1=60*h1+m1;
t2=60*h2+m2+5;
if(t2<t1) t2+=1440;
m[t1]++;
if(t2>1439) m[0]++;
m[t2%1440]--;
}
fclose(f);
t=max=0;
for(i=0;i<1440;i++)
if((t+=m)>max) max=t;
f=fopen("OUTPUT.TXT","w");
fprintf(f,"%ld",max);
fclose(f);
}