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#include <stdio.h>
#include <string.h> //strcmp, strchr
#include <stdlib.h>
int main(int argc,char *argv[]) {
char c;//comma?
long long ll;
short s=0;
if(argc < 2) {
printf("usage: elapsedtime [-s|--short] seconds\n");
return 1;
}
argv++;
if(!strcmp(*argv,"-s") || !strcmp(*argv,"--short")) {
s=1;
argv++;
}
char *f=strchr(*argv,'.');
ll=atoll(*argv);
if(s) {
if(ll / 3600) {
printf("%lld:%lld:%02lld%s\n",ll / 3600, ll / 60 % 60,ll % 60,f?f:"");
} else {
printf("%lld:%02lld%s\n",ll / 60 % 60,ll % 60,f?f:"");
}
return 0;
}
if(ll / 31557600 ) { if(c) printf(", ");c=1;printf("%lld year%s", ll / 31557600, ll / 31557600 == 1 ? "" : "s"); }
if(ll % 31557600 / 86400) { if(c) printf(", ");c=1;printf("%lld day%s", ll % 31557600 / 86400, ll % 31557600 / 86400 == 1 ? "" : "s"); }
if(ll / 3600 % 24) { if(c) printf(", ");c=1;printf("%lld hour%s", ll / 3600 % 24, ll / 3600 % 24 == 1 ? "" : "s"); }
if(ll / 60 % 60) { if(c) printf(", ");c=1;printf("%lld minute%s",ll / 60 % 60, ll / 60 % 60 == 1 ? "" : "s"); }
if(ll % 60) { if(c) printf(", ");c=1;printf("%lld%s second%s",ll % 60,f?f:"", ll % 60 == 1 && !f ? "" : "s"); }
putchar('\n');
return 0;
}
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