thanks to http://stackoverflow.com/questions/2144459/using-scanf-to-accept-user-input and http://stackoverflow.com/questions/456303/how-to-validate-input-using-scanf for the i/o part.
thanks to http://www.haodaima.net/art/137347 for the rounding part. s=s/nkilo+0.5; //s=round(s/nkilo);
check return value of scanf,
std::fgets, http://en.cppreference.com/w/cpp/io/c/fgets
std::atoi, std::atol, std::atoll,
std::strtof, std::strtod, std::strtold,
std::strtol, std::strtoll,
std::strtok, http://en.cppreference.com/w/cpp/string/byte/strtok
std::round, std::lround, std::llround, http://en.cppreference.com/w/cpp/numeric/math/round
#include <cstdio>
#include <cmath>
#include <algorithm>
#define MAXLEN 200
#define STEP 8
char buffer[MAXLEN];
int main() {
//freopen("input.txt","r",stdin);
int nsect, team, h,m,s, ht,mt,st, i, disqualified;
char *p;
double nkilo;
scanf("%d%lf",&nsect,&nkilo);
while(scanf("%d",&team)==1) {
h=m=s=0; disqualified=0;
p=buffer;
fgets(buffer,MAXLEN,stdin);
for(i=0;i<nsect;++i) {
if(sscanf(p,"%d:%d:%d",&ht,&mt,&st)!=3) { disqualified=1; break; }
h+=ht; m+=mt; s+=st; p+=STEP;
}
if(disqualified) { printf("%3d: -
",team); continue; }
s+=(m*60+h*3600);
s=s/nkilo+0.5; //s=round(s/nkilo);
m=s/60; s=s%60;
printf("%3d: %d:%02d min/km
",team,m,s);
}
return 0;
}
as the problem title of hdu 1036 ( Average is not Fast Enough! )
suggest, Average is not Fast Enough, indeed.
版权声明：本文为博主原创文章，未经博主允许不得转载。// p.s. If in any way improment can be achieved, better performance or whatever, it will be well-appreciated to let me know, thanks in advance.