#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define int ll
#define rep(i, n) for(int i = 1; i <= n; ++i)
#define forn(i, l, r) for(int i = l; i <= r; ++i)
#define ford(i, r, l) for(int i = r; i >= l; --i)
#define FOR(i, n) for(int i = 0; i < n; ++i)
#define fi first
#define se second
#define pii pair<int, int>
#define pll pair<ll, ll>
#define pb push_back
#define endl "\n"
#define task ""
#define sz(a) int(a.size())
#define C(x, y) make_pair(x, y)
#define all(a) (a).begin(), (a).end()
#define bit(i, mask) (mask >> i & 1)
template<typename T> bool maximize(T &res, const T &val) { if (res < val){ res = val; return true; }; return false; }
template<typename T> bool minimize(T &res, const T &val) { if (res > val){ res = val; return true; }; return false; }
inline int readInt() {char c;while(c=getchar(),c!='-'&&(c<'0'||c>'9'));bool sign=(c=='-');if(sign)c=getchar();int n=c-'0';while(c=getchar(),c>='0'&&c<='9')n=10*n+c-'0';return(!sign)?n:-n;}
inline ll readLong() {char c;while(c=getchar(),c!='-'&&(c<'0'||c>'9'));bool sign=(c=='-');if(sign)c=getchar();ll n=c-'0';while(c=getchar(),c>='0'&&c<='9')n=10*n+c-'0';return(!sign)?n:-n;}
inline string readString() {char c;while(c=getchar(),c==' '||c=='\n'||c=='\t');string s({c});while(c=getchar(),c!=EOF&&c!=' '&&c!='\n'&&c!='\t')s+=c;return s;}
const int N = 2e5 + 10;
const int M = 1e3 + 3;
const int N1 = 2e3 + 10;
const int K = 1e2 + 1;
const int MOD = 1e9 + 7;
const ll INF = 1e18;
const ll LINF = 1e17 + 2;
const int block_size = 500;
const int LOG = 29;
const int offset = N;
const int LIM = 1e4 ;
const int AL = 26;
int n;
ll a, b;
vector<pii> p;
void add(int l, int r)
{
p.pb({l, 1});
p.pb({r + 1, -1});
}
void solve()
{
cin >> n >> a >> b;
ll period = a / __gcd(a, b + 1) > INF / b ? INF : a / __gcd(a, b + 1) * b;
rep(i, n)
{
ll l, r;
cin >> l >> r;
if(r - l + 1 >= period) return cout << period, void();
l %= period;
r %= period;
if(l > r)
add(0, r), add(l, period - 1);
else
add(l, r);
}
sort(all(p));
int cnt = 0;
ll last = 0;
ll res = 0;
for(int i = 0; i < sz(p); ++i)
{
int j = i;
if(i > 0 && cnt)
res += (p[i].fi - p[i - 1].fi);
while(j < sz(p) && p[i].fi == p[j].fi)
{
cnt += p[j].se;
++j;
}
i = j - 1;
}
cout << res;
}
signed main()
{
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
int TC = 1;
while(TC--)
{
solve();
cout << endl;
}
return 0;
}
//ha
Compilation message
strange_device.cpp: In function 'void solve()':
strange_device.cpp:74:8: warning: unused variable 'last' [-Wunused-variable]
74 | ll last = 0;
| ^~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
6 ms |
1364 KB |
Output is correct |
3 |
Correct |
4 ms |
1248 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
456 KB |
Output is correct |
6 |
Correct |
1 ms |
600 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
0 ms |
360 KB |
Output is correct |
12 |
Correct |
0 ms |
360 KB |
Output is correct |
13 |
Correct |
0 ms |
360 KB |
Output is correct |
14 |
Correct |
0 ms |
360 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
6 ms |
1248 KB |
Output is correct |
17 |
Correct |
46 ms |
7380 KB |
Output is correct |
18 |
Correct |
1 ms |
504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
356 KB |
Output is correct |
2 |
Correct |
0 ms |
360 KB |
Output is correct |
3 |
Correct |
0 ms |
464 KB |
Output is correct |
4 |
Correct |
0 ms |
360 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
352 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
524 KB |
Output is correct |
5 |
Correct |
262 ms |
56924 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
385 ms |
69720 KB |
Output is correct |
3 |
Correct |
393 ms |
69380 KB |
Output is correct |
4 |
Correct |
369 ms |
69116 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
385 ms |
69720 KB |
Output is correct |
3 |
Correct |
393 ms |
69380 KB |
Output is correct |
4 |
Correct |
369 ms |
69116 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
399 ms |
68572 KB |
Output is correct |
7 |
Correct |
410 ms |
70304 KB |
Output is correct |
8 |
Correct |
412 ms |
70024 KB |
Output is correct |
9 |
Correct |
434 ms |
68912 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
385 ms |
69720 KB |
Output is correct |
3 |
Correct |
393 ms |
69380 KB |
Output is correct |
4 |
Correct |
369 ms |
69116 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
37 ms |
8436 KB |
Output is correct |
7 |
Correct |
53 ms |
8492 KB |
Output is correct |
8 |
Correct |
38 ms |
7612 KB |
Output is correct |
9 |
Correct |
39 ms |
8696 KB |
Output is correct |
10 |
Correct |
47 ms |
9100 KB |
Output is correct |
11 |
Correct |
41 ms |
7880 KB |
Output is correct |
12 |
Correct |
35 ms |
7624 KB |
Output is correct |
13 |
Correct |
41 ms |
8916 KB |
Output is correct |
14 |
Correct |
39 ms |
7884 KB |
Output is correct |
15 |
Correct |
44 ms |
8664 KB |
Output is correct |
16 |
Correct |
51 ms |
8408 KB |
Output is correct |
17 |
Correct |
38 ms |
9168 KB |
Output is correct |
18 |
Correct |
425 ms |
70200 KB |
Output is correct |
19 |
Correct |
434 ms |
70436 KB |
Output is correct |
20 |
Correct |
532 ms |
69120 KB |
Output is correct |
21 |
Correct |
45 ms |
7928 KB |
Output is correct |
22 |
Correct |
39 ms |
8648 KB |
Output is correct |
23 |
Correct |
112 ms |
28680 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
452 KB |
Output is correct |
2 |
Correct |
46 ms |
8156 KB |
Output is correct |
3 |
Correct |
52 ms |
8896 KB |
Output is correct |
4 |
Correct |
625 ms |
68840 KB |
Output is correct |
5 |
Correct |
46 ms |
8640 KB |
Output is correct |
6 |
Correct |
48 ms |
7752 KB |
Output is correct |
7 |
Correct |
52 ms |
8476 KB |
Output is correct |
8 |
Correct |
64 ms |
8148 KB |
Output is correct |
9 |
Correct |
54 ms |
8152 KB |
Output is correct |
10 |
Correct |
51 ms |
8600 KB |
Output is correct |
11 |
Correct |
62 ms |
7896 KB |
Output is correct |
12 |
Correct |
40 ms |
9160 KB |
Output is correct |
13 |
Correct |
53 ms |
8676 KB |
Output is correct |
14 |
Correct |
510 ms |
68676 KB |
Output is correct |
15 |
Correct |
48 ms |
8396 KB |
Output is correct |
16 |
Correct |
412 ms |
68772 KB |
Output is correct |
17 |
Correct |
397 ms |
69800 KB |
Output is correct |
18 |
Correct |
0 ms |
456 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
6 ms |
1364 KB |
Output is correct |
3 |
Correct |
4 ms |
1248 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
456 KB |
Output is correct |
6 |
Correct |
1 ms |
600 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
0 ms |
360 KB |
Output is correct |
12 |
Correct |
0 ms |
360 KB |
Output is correct |
13 |
Correct |
0 ms |
360 KB |
Output is correct |
14 |
Correct |
0 ms |
360 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
6 ms |
1248 KB |
Output is correct |
17 |
Correct |
46 ms |
7380 KB |
Output is correct |
18 |
Correct |
1 ms |
504 KB |
Output is correct |
19 |
Correct |
1 ms |
356 KB |
Output is correct |
20 |
Correct |
0 ms |
360 KB |
Output is correct |
21 |
Correct |
0 ms |
464 KB |
Output is correct |
22 |
Correct |
0 ms |
360 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
344 KB |
Output is correct |
25 |
Correct |
1 ms |
352 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
524 KB |
Output is correct |
28 |
Correct |
262 ms |
56924 KB |
Output is correct |
29 |
Correct |
1 ms |
344 KB |
Output is correct |
30 |
Correct |
385 ms |
69720 KB |
Output is correct |
31 |
Correct |
393 ms |
69380 KB |
Output is correct |
32 |
Correct |
369 ms |
69116 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
399 ms |
68572 KB |
Output is correct |
35 |
Correct |
410 ms |
70304 KB |
Output is correct |
36 |
Correct |
412 ms |
70024 KB |
Output is correct |
37 |
Correct |
434 ms |
68912 KB |
Output is correct |
38 |
Correct |
1 ms |
344 KB |
Output is correct |
39 |
Correct |
37 ms |
8436 KB |
Output is correct |
40 |
Correct |
53 ms |
8492 KB |
Output is correct |
41 |
Correct |
38 ms |
7612 KB |
Output is correct |
42 |
Correct |
39 ms |
8696 KB |
Output is correct |
43 |
Correct |
47 ms |
9100 KB |
Output is correct |
44 |
Correct |
41 ms |
7880 KB |
Output is correct |
45 |
Correct |
35 ms |
7624 KB |
Output is correct |
46 |
Correct |
41 ms |
8916 KB |
Output is correct |
47 |
Correct |
39 ms |
7884 KB |
Output is correct |
48 |
Correct |
44 ms |
8664 KB |
Output is correct |
49 |
Correct |
51 ms |
8408 KB |
Output is correct |
50 |
Correct |
38 ms |
9168 KB |
Output is correct |
51 |
Correct |
425 ms |
70200 KB |
Output is correct |
52 |
Correct |
434 ms |
70436 KB |
Output is correct |
53 |
Correct |
532 ms |
69120 KB |
Output is correct |
54 |
Correct |
45 ms |
7928 KB |
Output is correct |
55 |
Correct |
39 ms |
8648 KB |
Output is correct |
56 |
Correct |
112 ms |
28680 KB |
Output is correct |
57 |
Correct |
0 ms |
452 KB |
Output is correct |
58 |
Correct |
46 ms |
8156 KB |
Output is correct |
59 |
Correct |
52 ms |
8896 KB |
Output is correct |
60 |
Correct |
625 ms |
68840 KB |
Output is correct |
61 |
Correct |
46 ms |
8640 KB |
Output is correct |
62 |
Correct |
48 ms |
7752 KB |
Output is correct |
63 |
Correct |
52 ms |
8476 KB |
Output is correct |
64 |
Correct |
64 ms |
8148 KB |
Output is correct |
65 |
Correct |
54 ms |
8152 KB |
Output is correct |
66 |
Correct |
51 ms |
8600 KB |
Output is correct |
67 |
Correct |
62 ms |
7896 KB |
Output is correct |
68 |
Correct |
40 ms |
9160 KB |
Output is correct |
69 |
Correct |
53 ms |
8676 KB |
Output is correct |
70 |
Correct |
510 ms |
68676 KB |
Output is correct |
71 |
Correct |
48 ms |
8396 KB |
Output is correct |
72 |
Correct |
412 ms |
68772 KB |
Output is correct |
73 |
Correct |
397 ms |
69800 KB |
Output is correct |
74 |
Correct |
0 ms |
456 KB |
Output is correct |
75 |
Correct |
1 ms |
348 KB |
Output is correct |
76 |
Correct |
0 ms |
348 KB |
Output is correct |
77 |
Correct |
1 ms |
348 KB |
Output is correct |
78 |
Correct |
0 ms |
448 KB |
Output is correct |
79 |
Correct |
4 ms |
1444 KB |
Output is correct |
80 |
Correct |
563 ms |
68840 KB |
Output is correct |
81 |
Correct |
592 ms |
68780 KB |
Output is correct |
82 |
Correct |
521 ms |
69256 KB |
Output is correct |
83 |
Correct |
487 ms |
69720 KB |
Output is correct |
84 |
Correct |
476 ms |
68808 KB |
Output is correct |
85 |
Correct |
466 ms |
70200 KB |
Output is correct |
86 |
Correct |
107 ms |
28320 KB |
Output is correct |
87 |
Correct |
1 ms |
348 KB |
Output is correct |