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Submission #674722

# Submission time Handle Problem Language Result Execution time Memory
674722 2022-12-26T01:24:03 Z vjudge1 Strange Device (APIO19_strange_device) C++17
100 / 100
 642 ms 100132 KB 
#include<bits/stdc++.h>
template<class T> inline void read(T &x){
	x=0; register char c=getchar(); register bool f=0;
	while(!isdigit(c))f^=c=='-',c=getchar();
	while(isdigit(c))x=x*10+c-'0',c=getchar(); if(f)x=-x;
}
template<class T> inline T gcd(T n,T m){return m?gcd(m,n%m):n;}
const int N=1e6+10;
int n;
long long A,B,l,r,ans;
std::map<long long,int> sum;
int main(){
#ifdef memset0
	freopen("1.in","r",stdin);
#endif
	read(n),read(A),read(B);
	A/=gcd(A,B+1);
	if(A>(long long)(2e18)/B){
		for(int i=1;i<=n;i++){
			read(l),read(r);
			ans+=r-l+1;
		}
		printf("%lld\n",ans);
		return 0;
	}
	// printf("%lld %lld\n",A,B);
	for(int i=1;i<=n;i++){
		read(l),read(r);
		if(r-l+1>=A*B){
			printf("%lld\n",A*B);
			return 0;
		}
		l%=A*B,r%=A*B;
		// printf("> %lld %lld\n",l,r);
		if(l<=r){
			sum[l]++,sum[r+1]--;
		}else{
			sum[0]++,sum[r+1]--;
			sum[l]++,sum[A*B]--;
		}
	}
	sum[A*B]+=0;
	long long cnt=0,lst=0;
	for(const auto &it:sum){
		if(cnt)ans+=it.first-lst;
		cnt+=it.second;
		lst=it.first;
	}
	printf("%lld\n",ans);
}

Compilation message

strange_device.cpp: In function 'void read(T&)':
strange_device.cpp:3:21: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    3 |  x=0; register char c=getchar(); register bool f=0;
      |                     ^
strange_device.cpp:3:48: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    3 |  x=0; register char c=getchar(); register bool f=0;
      |                                                ^
strange_device.cpp:5:2: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
    5 |  while(isdigit(c))x=x*10+c-'0',c=getchar(); if(f)x=-x;
      |  ^~~~~
strange_device.cpp:5:45: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while'
    5 |  while(isdigit(c))x=x*10+c-'0',c=getchar(); if(f)x=-x;
      |                                             ^~
strange_device.cpp: In instantiation of 'void read(T&) [with T = int]':
strange_device.cpp:16:8:   required from here
strange_device.cpp:3:21: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    3 |  x=0; register char c=getchar(); register bool f=0;
      |                     ^
strange_device.cpp:3:48: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    3 |  x=0; register char c=getchar(); register bool f=0;
      |                                                ^
strange_device.cpp: In instantiation of 'void read(T&) [with T = long long int]':
strange_device.cpp:16:16:   required from here
strange_device.cpp:3:21: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    3 |  x=0; register char c=getchar(); register bool f=0;
      |                     ^
strange_device.cpp:3:48: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    3 |  x=0; register char c=getchar(); register bool f=0;
      |                                                ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 5 ms 1236 KB Output is correct
3 Correct 4 ms 1208 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 4 ms 1252 KB Output is correct
17 Correct 64 ms 10160 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 300 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 199 ms 25348 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 611 ms 100008 KB Output is correct
3 Correct 544 ms 99984 KB Output is correct
4 Correct 591 ms 99948 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 611 ms 100008 KB Output is correct
3 Correct 544 ms 99984 KB Output is correct
4 Correct 591 ms 99948 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 642 ms 99912 KB Output is correct
7 Correct 570 ms 99912 KB Output is correct
8 Correct 496 ms 99952 KB Output is correct
9 Correct 564 ms 100132 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 611 ms 100008 KB Output is correct
3 Correct 544 ms 99984 KB Output is correct
4 Correct 591 ms 99948 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 40 ms 10268 KB Output is correct
7 Correct 58 ms 10256 KB Output is correct
8 Correct 49 ms 10196 KB Output is correct
9 Correct 46 ms 10188 KB Output is correct
10 Correct 39 ms 10204 KB Output is correct
11 Correct 56 ms 10244 KB Output is correct
12 Correct 69 ms 10228 KB Output is correct
13 Correct 51 ms 10148 KB Output is correct
14 Correct 39 ms 10148 KB Output is correct
15 Correct 61 ms 10204 KB Output is correct
16 Correct 52 ms 10156 KB Output is correct
17 Correct 47 ms 10188 KB Output is correct
18 Correct 506 ms 99984 KB Output is correct
19 Correct 588 ms 99296 KB Output is correct
20 Correct 583 ms 98624 KB Output is correct
21 Correct 47 ms 10168 KB Output is correct
22 Correct 43 ms 10160 KB Output is correct
23 Correct 75 ms 12800 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 52 ms 10220 KB Output is correct
3 Correct 72 ms 10168 KB Output is correct
4 Correct 544 ms 99672 KB Output is correct
5 Correct 50 ms 10236 KB Output is correct
6 Correct 57 ms 10176 KB Output is correct
7 Correct 50 ms 10188 KB Output is correct
8 Correct 59 ms 10236 KB Output is correct
9 Correct 48 ms 10272 KB Output is correct
10 Correct 42 ms 10188 KB Output is correct
11 Correct 45 ms 10228 KB Output is correct
12 Correct 45 ms 10260 KB Output is correct
13 Correct 58 ms 10168 KB Output is correct
14 Correct 614 ms 99928 KB Output is correct
15 Correct 49 ms 10252 KB Output is correct
16 Correct 499 ms 100032 KB Output is correct
17 Correct 506 ms 100084 KB Output is correct
18 Correct 0 ms 224 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 5 ms 1236 KB Output is correct
3 Correct 4 ms 1208 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 4 ms 1252 KB Output is correct
17 Correct 64 ms 10160 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 1 ms 300 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 199 ms 25348 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 611 ms 100008 KB Output is correct
31 Correct 544 ms 99984 KB Output is correct
32 Correct 591 ms 99948 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 642 ms 99912 KB Output is correct
35 Correct 570 ms 99912 KB Output is correct
36 Correct 496 ms 99952 KB Output is correct
37 Correct 564 ms 100132 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 40 ms 10268 KB Output is correct
40 Correct 58 ms 10256 KB Output is correct
41 Correct 49 ms 10196 KB Output is correct
42 Correct 46 ms 10188 KB Output is correct
43 Correct 39 ms 10204 KB Output is correct
44 Correct 56 ms 10244 KB Output is correct
45 Correct 69 ms 10228 KB Output is correct
46 Correct 51 ms 10148 KB Output is correct
47 Correct 39 ms 10148 KB Output is correct
48 Correct 61 ms 10204 KB Output is correct
49 Correct 52 ms 10156 KB Output is correct
50 Correct 47 ms 10188 KB Output is correct
51 Correct 506 ms 99984 KB Output is correct
52 Correct 588 ms 99296 KB Output is correct
53 Correct 583 ms 98624 KB Output is correct
54 Correct 47 ms 10168 KB Output is correct
55 Correct 43 ms 10160 KB Output is correct
56 Correct 75 ms 12800 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 52 ms 10220 KB Output is correct
59 Correct 72 ms 10168 KB Output is correct
60 Correct 544 ms 99672 KB Output is correct
61 Correct 50 ms 10236 KB Output is correct
62 Correct 57 ms 10176 KB Output is correct
63 Correct 50 ms 10188 KB Output is correct
64 Correct 59 ms 10236 KB Output is correct
65 Correct 48 ms 10272 KB Output is correct
66 Correct 42 ms 10188 KB Output is correct
67 Correct 45 ms 10228 KB Output is correct
68 Correct 45 ms 10260 KB Output is correct
69 Correct 58 ms 10168 KB Output is correct
70 Correct 614 ms 99928 KB Output is correct
71 Correct 49 ms 10252 KB Output is correct
72 Correct 499 ms 100032 KB Output is correct
73 Correct 506 ms 100084 KB Output is correct
74 Correct 0 ms 224 KB Output is correct
75 Correct 1 ms 212 KB Output is correct
76 Correct 1 ms 300 KB Output is correct
77 Correct 1 ms 300 KB Output is correct
78 Correct 1 ms 212 KB Output is correct
79 Correct 5 ms 1208 KB Output is correct
80 Correct 577 ms 98436 KB Output is correct
81 Correct 584 ms 94000 KB Output is correct
82 Correct 598 ms 93680 KB Output is correct
83 Correct 588 ms 85872 KB Output is correct
84 Correct 625 ms 83300 KB Output is correct
85 Correct 548 ms 82416 KB Output is correct
86 Correct 65 ms 12804 KB Output is correct
87 Correct 1 ms 212 KB Output is correct