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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#566871 | #9158. 分数 | jay_jayjay | 85 | 423ms | 3948kb | C++14 | 1.7kb | 2024-09-16 02:44:45 | 2024-09-16 02:44:46 |
Judging History
answer
#pragma GCC optimize("Ofast,unroll-loops")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define inf 0x3f3f3f3f
#define infl 0x3f3f3f3f3f3f3f3f
#define all(x) (x).begin(),(x).end()
struct { template<class T> operator T() { int x; cin >> x; return x; } } in;
ll cnt=0;
int n,m;
bool feasible(ll a, ll b, ll c, ll d, ll x) {
return a+c*x<=n && b+d*x<=m;
}
void solve_x(ll a, ll b, ll c, ll d, ll mx) {
if(!feasible(a,b,c,d,mx)) return;
// (a+cx) / (b+dx)
ll delta = 0;
if(c) delta += min((n-a)/c/2, (m-b)/d/2) - mx/2 + 1;
else delta += (m-b)/d/2 - mx/2 + 1;
assert(delta>=0);
cnt+=delta;
//printf("\t%lld + %lld x / %lld + %lld x | %lld | %lld\n",a,c,b,d,mx,delta);
for(ll u=2; feasible(b,b+u*a,d,d+u*c,mx); u+=2) {
//printf("s2->s2 %d %d / %d %d -> %d %d / %d %d\n",a,c,b,d,b,d,a+u*b,c+u*d);
solve_x(b, a+u*b, d, c+u*d, max(mx,u));
}
}
void solve(ll a, ll b, ll mx) {
if(!feasible(b,a,0,b,mx)) return;
// a / b
for(ll u=2; feasible(a+u*b,b,0,a+u*b,max(mx,u)); u+=2) {
solve(b, a + u * b, max(mx, u));
//printf("s1->s1 %d / %d to %d / %d\n", a, b, b, a+u*b);
}
//printf("s1->s2 %d %d to %d %d / %d %d\n",a,b,b,0,a,b);
solve_x(b, a, 0, b, mx+2);
}
int main()
{
n=in, m=in;
if(n<m)swap(n,m);
// n >= m
//solve(1,0,0);
//printf("<1---\n");
solve(0,1,0);
swap(n,m);
//printf(">1---\n");
solve(0,1,0);
printf("%lld\n",cnt);
}
Details
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Pretests
Pretest #1:
score: 5
Accepted
time: 0ms
memory: 3768kb
input:
99 99
output:
406
result:
ok 1 number(s): "406"
Pretest #2:
score: 5
Accepted
time: 0ms
memory: 3808kb
input:
98 97
output:
405
result:
ok 1 number(s): "405"
Pretest #3:
score: 5
Accepted
time: 0ms
memory: 3848kb
input:
99 96
output:
396
result:
ok 1 number(s): "396"
Pretest #4:
score: 5
Accepted
time: 0ms
memory: 3876kb
input:
995 977
output:
11153
result:
ok 1 number(s): "11153"
Pretest #5:
score: 5
Accepted
time: 0ms
memory: 3828kb
input:
991 990
output:
11220
result:
ok 1 number(s): "11220"
Pretest #6:
score: 5
Accepted
time: 0ms
memory: 3820kb
input:
976 968
output:
10900
result:
ok 1 number(s): "10900"
Pretest #7:
score: 5
Accepted
time: 1ms
memory: 3824kb
input:
7602 7864
output:
215706
result:
ok 1 number(s): "215706"
Pretest #8:
score: 5
Accepted
time: 1ms
memory: 3948kb
input:
7959 7735
output:
220256
result:
ok 1 number(s): "220256"
Pretest #9:
score: 5
Accepted
time: 1ms
memory: 3824kb
input:
7878 7863
output:
221162
result:
ok 1 number(s): "221162"
Pretest #10:
score: 5
Accepted
time: 1ms
memory: 3772kb
input:
7788 7658
output:
215323
result:
ok 1 number(s): "215323"
Pretest #11:
score: 5
Accepted
time: 18ms
memory: 3804kb
input:
95399 99767
output:
8285295
result:
ok 1 number(s): "8285295"
Pretest #12:
score: 5
Accepted
time: 15ms
memory: 3764kb
input:
98051 99642
output:
8439713
result:
ok 1 number(s): "8439713"
Pretest #13:
score: 5
Accepted
time: 15ms
memory: 3836kb
input:
95624 96007
output:
8068127
result:
ok 1 number(s): "8068127"
Pretest #14:
score: 5
Accepted
time: 19ms
memory: 3748kb
input:
99208 98047
output:
8412610
result:
ok 1 number(s): "8412610"
Pretest #15:
score: 5
Accepted
time: 423ms
memory: 3820kb
input:
997417 967722
output:
229917323
result:
ok 1 number(s): "229917323"
Pretest #16:
score: 5
Accepted
time: 410ms
memory: 3832kb
input:
987807 956529
output:
226426912
result:
ok 1 number(s): "226426912"
Pretest #17:
score: 5
Accepted
time: 419ms
memory: 3840kb
input:
971654 984345
output:
228363805
result:
ok 1 number(s): "228363805"
Pretest #18:
score: 0
Time Limit Exceeded
input:
7892259 7983727
output:
result:
Pretest #19:
score: 0
Time Limit Exceeded
input:
7937869 29796968
output:
result:
Pretest #20:
score: 0
Time Limit Exceeded
input:
29717543 29510173
output:
result:
Final Tests
Test #1:
score: 5
Accepted
time: 0ms
memory: 3756kb
input:
96 98
output:
396
result:
ok 1 number(s): "396"
Test #2:
score: 5
Accepted
time: 0ms
memory: 3784kb
input:
100 99
output:
408
result:
ok 1 number(s): "408"
Test #3:
score: 5
Accepted
time: 0ms
memory: 3820kb
input:
99 99
output:
406
result:
ok 1 number(s): "406"
Test #4:
score: 5
Accepted
time: 0ms
memory: 3760kb
input:
963 951
output:
10634
result:
ok 1 number(s): "10634"
Test #5:
score: 5
Accepted
time: 0ms
memory: 3944kb
input:
958 974
output:
10795
result:
ok 1 number(s): "10795"
Test #6:
score: 5
Accepted
time: 0ms
memory: 3784kb
input:
966 990
output:
11003
result:
ok 1 number(s): "11003"
Test #7:
score: 5
Accepted
time: 1ms
memory: 3876kb
input:
7958 7947
output:
224482
result:
ok 1 number(s): "224482"
Test #8:
score: 5
Accepted
time: 1ms
memory: 3804kb
input:
7623 7730
output:
213444
result:
ok 1 number(s): "213444"
Test #9:
score: 5
Accepted
time: 1ms
memory: 3840kb
input:
7845 7783
output:
218916
result:
ok 1 number(s): "218916"
Test #10:
score: 5
Accepted
time: 1ms
memory: 3800kb
input:
7881 7773
output:
219451
result:
ok 1 number(s): "219451"
Test #11:
score: 5
Accepted
time: 19ms
memory: 3844kb
input:
99414 98698
output:
8465217
result:
ok 1 number(s): "8465217"
Test #12:
score: 5
Accepted
time: 18ms
memory: 3820kb
input:
98249 96148
output:
8237486
result:
ok 1 number(s): "8237486"
Test #13:
score: 5
Accepted
time: 18ms
memory: 3888kb
input:
99003 96832
output:
8324931
result:
ok 1 number(s): "8324931"
Test #14:
score: 5
Accepted
time: 18ms
memory: 3780kb
input:
98266 96030
output:
8231065
result:
ok 1 number(s): "8231065"
Test #15:
score: 5
Accepted
time: 407ms
memory: 3780kb
input:
968207 958885
output:
223522215
result:
ok 1 number(s): "223522215"
Test #16:
score: 5
Accepted
time: 415ms
memory: 3840kb
input:
959846 998397
output:
228770873
result:
ok 1 number(s): "228770873"
Test #17:
score: 5
Accepted
time: 412ms
memory: 3752kb
input:
965821 972280
output:
225359210
result:
ok 1 number(s): "225359210"
Test #18:
score: 0
Time Limit Exceeded
input:
7855098 7962479
output:
result:
Test #19:
score: 0
Time Limit Exceeded
input:
7841076 29648718
output:
result:
Test #20:
score: 0
Time Limit Exceeded
input:
29365129 29012208