[ACM 1280] How many hours have coders slept?

Description

How many hours have he slept in total?

Input has multiple groups of test data, one row in each group, which is the bed time and the bed time. A space is separated between them. Output: for each group of data, the total sleep time of the coders is T (minutes) of course 0 <= T <24*60 sample input01: 00 08: 00 sample output420 540

# Include <algorithm> # include <iostream> # include <string> # include <vector> using namespace STD; int main () {string S1, S2; while (CIN> S1> S2) {int H1 = (S1 [0]-'0') * 10 + (S1 [1]-'0 '); int H2 = (s2 [0]-'0') * 10 + (s2 [1]-'0'); int M1 = (S1 [3]-'0 ') * 10 + (S1 [4]-'0'); int m2 = (s2 [3]-'0 ') * 10 + (s2 [4]-'0'); int flag = 0; // whether to borrow an hour int sum = 0; If (M1> m2) {flag = 1; sum + = (M2 + 60-M1);} else {sum + = (m2-M1);} If (H2> = (H1 + flag )) // equal sign do not forget Oh, critical judgment should be careful {sum + = (h2-h1-flag) * 60);} else {sum + = (H2 + 24-h1-flag) * 60) ;}cout <sum <Endl ;}}