33 lines
1.1 KiB
C
33 lines
1.1 KiB
C
#include <stdio.h>
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#include <time.h>
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int main()
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{
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int d = 0;
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int m = 0;
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int y = 0;
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scanf("%d.%d.%d", &d, &m, &y);
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//check date validness
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if(!(m>=1 && m<=12) && !(y>=0 && y<=9999) && !(((d>=1 && d<=31) && (m==1 || m==3 || m==5 || m==7 || m==8 || m==10 || m==12)) || ((d>=1 && d<=30) && m==4 || m==6 || m==9 || m==11) ||(d==29 && m==2 && (y%400==0 ||(y%4==0 && y%100!=0))) || ((d>=1 && d<=28) && m==2))){
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puts("Nespravny datum\n");
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return 0;
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}
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//setting date
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struct tm t = { .tm_year=y-1900, .tm_mon=m-1, .tm_mday=d };
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//adding week to the date
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t.tm_mday += 7;
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mktime(&t);
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//output data
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if(t.tm_mday <10 && t.tm_mon+1 < 10)
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printf(" %d.0%d.%d\n\n", t.tm_mday, t.tm_mon+1, t.tm_year+1900);
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else if(t.tm_mday < 10)
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printf(" %d.%d.%d\n\n", t.tm_mday, t.tm_mon+1, t.tm_year+1900);
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else if(t.tm_mon+1 < 10)
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printf("%d.0%d.%d\n\n", t.tm_mday, t.tm_mon+1, t.tm_year+1900);
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else
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printf("%d.%d.%d\n\n", t.tm_mday, t.tm_mon+1, t.tm_year+1900);
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}
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