parsare

FILE* fin=fopen("fisier.in","r");
const unsigned maxb=30000192;
char buf[maxb];
unsigned ptr=maxb;

inline unsigned getInt(){
    unsigned nr=0;
    while(buf[ptr]<'0'||'9'<buf[ptr])
    if(++ptr>=maxb)
        fread(buf,maxb,1,fin),ptr=0;
    while('0'<=buf[ptr]&&buf[ptr]<='9'){
        nr=nr*10+buf[ptr]-'0';
        if(++ptr>=maxb)
            fread(buf,maxb,1,fin),ptr=0;
    }
    return nr;
}