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#2
纯蓝之刃2020-03-11 13:47
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int main()
{
int a,x,m1,m2,m3,y1,y2;
scanf("%d",&a);
x=a/(24*60*60);
m1=a%(24*60*60);
y1=m1/(60*60);
m2=m1%(60*60);
y2=m2/60;
m3=m2%60;
printf("%d %02d:%02d:%02d",x,y1,y2,m3);
return 0;
}
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