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QOJ
| ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
|---|---|---|---|---|---|---|---|---|---|
| #355113 | #8165. Numerous Elimination | willow# | AC ✓ | 1ms | 3924kb | C++17 | 404b | 2024-03-16 13:24:13 | 2024-03-16 13:24:14 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int mod = 998244353;
int Add(int x, int y) {
return (x += y) >= mod ? x - mod : x;
}
int Mul(int x, int y) {
return 1ll * x * y % mod;
}
int ans, n;
int main() {
scanf("%d", &n);
int p = 1;
for(int i = n - 1; i >= 1; -- i) {
ans = Add(ans, Mul(i, p));
p = Mul(p, 2);
}
printf("%d\n", ans);
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3892kb
input:
3
output:
4
result:
ok "4"
Test #2:
score: 0
Accepted
time: 1ms
memory: 3884kb
input:
5
output:
26
result:
ok "26"
Test #3:
score: 0
Accepted
time: 1ms
memory: 3744kb
input:
100000
output:
538161387
result:
ok "538161387"
Test #4:
score: 0
Accepted
time: 1ms
memory: 3908kb
input:
1
output:
0
result:
ok "0"
Test #5:
score: 0
Accepted
time: 1ms
memory: 3920kb
input:
5350
output:
998242641
result:
ok "998242641"
Test #6:
score: 0
Accepted
time: 1ms
memory: 3884kb
input:
62724
output:
998198137
result:
ok "998198137"
Test #7:
score: 0
Accepted
time: 0ms
memory: 3852kb
input:
2
output:
1
result:
ok "1"
Test #8:
score: 0
Accepted
time: 1ms
memory: 3836kb
input:
4
output:
11
result:
ok "11"
Test #9:
score: 0
Accepted
time: 0ms
memory: 3892kb
input:
96167
output:
998190723
result:
ok "998190723"
Test #10:
score: 0
Accepted
time: 1ms
memory: 3796kb
input:
99999
output:
269030694
result:
ok "269030694"
Test #11:
score: 0
Accepted
time: 1ms
memory: 3880kb
input:
80821
output:
998215590
result:
ok "998215590"
Test #12:
score: 0
Accepted
time: 0ms
memory: 3924kb
input:
691
output:
740311102
result:
ok "740311102"
Test #13:
score: 0
Accepted
time: 1ms
memory: 3920kb
input:
367
output:
675545966
result:
ok "675545966"
Test #14:
score: 0
Accepted
time: 1ms
memory: 3884kb
input:
692
output:
482378542
result:
ok "482378542"
Test #15:
score: 0
Accepted
time: 0ms
memory: 3856kb
input:
369
output:
705696260
result:
ok "705696260"
Test #16:
score: 0
Accepted
time: 0ms
memory: 3784kb
input:
35
output:
419430330
result:
ok "419430330"
Test #17:
score: 0
Accepted
time: 0ms
memory: 3892kb
input:
234
output:
490144146
result:
ok "490144146"
Test #18:
score: 0
Accepted
time: 0ms
memory: 3740kb
input:
327
output:
130396777
result:
ok "130396777"
Test #19:
score: 0
Accepted
time: 0ms
memory: 3788kb
input:
652
output:
117556084
result:
ok "117556084"
Test #20:
score: 0
Accepted
time: 0ms
memory: 3744kb
input:
7305
output:
11786609
result:
ok "11786609"
Test #21:
score: 0
Accepted
time: 1ms
memory: 3808kb
input:
9395
output:
870321930
result:
ok "870321930"
Test #22:
score: 0
Accepted
time: 1ms
memory: 3828kb
input:
9122
output:
996587272
result:
ok "996587272"
Test #23:
score: 0
Accepted
time: 0ms
memory: 3896kb
input:
8780
output:
966309924
result:
ok "966309924"
Test #24:
score: 0
Accepted
time: 1ms
memory: 3744kb
input:
7939
output:
523856979
result:
ok "523856979"
Test #25:
score: 0
Accepted
time: 0ms
memory: 3908kb
input:
1008
output:
954704138
result:
ok "954704138"
Test #26:
score: 0
Accepted
time: 0ms
memory: 3828kb
input:
8871
output:
829374169
result:
ok "829374169"
Test #27:
score: 0
Accepted
time: 0ms
memory: 3744kb
input:
8480
output:
372742505
result:
ok "372742505"
Test #28:
score: 0
Accepted
time: 1ms
memory: 3892kb
input:
70021
output:
202886229
result:
ok "202886229"
Test #29:
score: 0
Accepted
time: 1ms
memory: 3860kb
input:
41153
output:
880779931
result:
ok "880779931"
Test #30:
score: 0
Accepted
time: 0ms
memory: 3856kb
input:
86440
output:
835505974
result:
ok "835505974"
Test #31:
score: 0
Accepted
time: 0ms
memory: 3716kb
input:
19101
output:
37362176
result:
ok "37362176"
Test #32:
score: 0
Accepted
time: 1ms
memory: 3852kb
input:
55627
output:
833199493
result:
ok "833199493"
Test #33:
score: 0
Accepted
time: 1ms
memory: 3808kb
input:
30717
output:
121442010
result:
ok "121442010"
Test #34:
score: 0
Accepted
time: 0ms
memory: 3740kb
input:
10324
output:
968761253
result:
ok "968761253"
Test #35:
score: 0
Accepted
time: 1ms
memory: 3884kb
input:
32688
output:
63693036
result:
ok "63693036"
Extra Test:
score: 0
Extra Test Passed