#include <stdio.h> #include <stdlib.h> #include <math.h> int main() { int time1[3]; int time2[3]; scanf("%d:%d:%d",&time1[0],&time1[1],&time1[2]); scanf("%d:%d:%d",&time2[0],&time2[1],&time2[2]); int *t1 = time1; int *t2 = time2; int result[3]; for(int i = 0;i<3;i++){ if(t1[i] > t2[i]){ t1 = time1; t2 = time2; break; }else if(t1[i]<t2[i]){ t2 = time1; t1 = time2; break; } } for(int i = 2;i>=0;i--){ if(t1[i] - t2[i] < 0){ t1[i-1] = t1[i-1] - 1; if(t1[i-1]<0){ t1[i-2] = t1[i-2]-1; t1[i-1] = t1[i-1]+60; } t1[i] = t1[i] + 60; } result[i] = t1[i] - t2[i]; } for(int i = 0;i<3;i++){ if(i == 0){ printf("%d",result[0]); }else{ if(result[i] < 10){ printf("0%d",result[i]); }else{ printf("%d",result[i]); } } if(i!=2){ printf("%s",":"); } } return 0; } |
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