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@drstranges
Created September 24, 2019 18:00
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Work time :)
4
15.01. 17:00
16.01. 12:00
11.02. 14:00
30.01. 10:00
#include <fstream>
using namespace std;
ifstream in("input.txt");
ofstream out("output.txt");
struct P { int d, m, t;};
int s(const string &l, int s) { return stoi(l.substr(s, 2)); }
int main() {
int c, i;
string l;
in >> c;
P p[c];
for (i = 0; i < c; ++i) {
in >> l;
p[i].d = s(l,0);
p[i].m = s(l,3);
in >> l;
p[i].t = s(l,0) * 60 + s(l,3);
}
qsort(p, c, sizeof(struct P), [](const void *s1, const void *s2) {
P *a = (P *) s1;
P *b = (P *) s2;
int r = a->m - b->m;
if (r == 0) r = a->d - b->d;
if (r == 0) r = a->t - b->t;
return r;
});
int r = 0;
for (i = 0; i < c; i+=2) {
P s = p[i];
P e = p[i+1];
r += e.t - s.t + 1;
r += (e.d - s.d) * 480;
if (e.m != s.m) {
for (int m = s.m; m < e.m; m++) {
r += (m == 2 ? 28 : m % 2 == (m <= 7 ? 0 : 1) ? 30 : 31) * 480;
}
}
}
int h = r / 60;
int m = r - (h * 60);
out << h << (m > 9 ? ":" : ":0") << m;
}
#include <fstream>
using namespace std;
ifstream in("input.txt");
ofstream out("output.txt");
struct Page { int day, month, minutes;};
int compare(const void *s1, const void *s2) {
Page *a = (Page *) s1;
Page *b = (Page *) s2;
int r = a->month - b->month;
if (r == 0) r = a->day - b->day;
if (r == 0) r = a->minutes - b->minutes;
return r;
}
int parseInt(const string &l, int pos) { return stoi(l.substr(pos, 2)); }
int main() {
int c, i;
string l;
in >> c;
Page pages[c];
for (i = 0; i < c; ++i) {
in >> l;
pages[i].day = parseInt(l, 0);
pages[i].month = parseInt(l, 3);
in >> l;
pages[i].minutes = parseInt(l, 0) * 60 + parseInt(l, 3);
}
qsort(pages, c, sizeof(struct Page), compare);
int r = 0;
for (i = 0; i < c; i+=2) {
Page p1 = pages[i];
Page p2 = pages[i + 1];
r += p2.minutes - p1.minutes + 1;
r += (p2.day - p1.day) * 480;
if (p2.month != p1.month) {
for (int m = p1.month; m < p2.month; m++) {
r += (m == 2 ? 28 : m % 2 == (m <= 7 ? 0 : 1) ? 30 : 31) * 480;
}
}
}
int hours = r / 60;
int minutes = r - (hours * 60);
out << hours << (minutes > 9 ? ":" : ":0") << minutes;
}
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