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QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #196291 | #6957. Do You Like Interactive Problems? | yiyiyi# | WA | 1ms | 3560kb | C++14 | 724b | 2023-10-01 15:18:42 | 2023-10-01 15:18:43 |
Judging History
answer
#include <bits/stdc++.h>
#define int long long
#define inf 0x3f3f3f3f
#define re register
#define N 1020030
#define pii pair<int,int>
#define fi first
#define se second
using namespace std;
const int mo=998244353;
inline int read(){
int x=0,w=0;char ch=getchar();
while (!isdigit(ch))w|=ch=='-',ch=getchar();
while (isdigit(ch))x=(x<<1)+(x<<3)+ch-'0',ch=getchar();
return w?-x:x;
}
int ksm(int x,int p){
int res=1;
for (;p;p>>=1){
if (p&1)res=res*x%mo;
x=x*x%mo;
}
return res;
}
void solve(){
int n=read();
if (n==1){puts("0");return;}
cout<<(n+(n-2)*3%mo*n%mo*ksm(2,mo-2)%mo)*ksm(n,mo-2)%mo<<endl;
}
signed main(){
int T=read();
while (T--)solve();
return 0;
}
Details
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Test #1:
score: 0
Wrong Answer
time: 1ms
memory: 3560kb
input:
100 251608761 33782011 325968940 486286497 999999993 575267221 8 928380304 123861349 739740016 999999991 31193142 9 999999996 705831120 162816569 293889735 644068367 999999992 1 323447272 387107234 6 214616549 755303220 699413097 499430423 151674815 999999998 46590460 2486352 926437790 248790470 100...
output:
876535316 549795191 488953408 230307567 2633458 363778653 10 394326101 684914198 111365669 2633455 46789711 499122188 501755639 60502325 743347028 939956777 466980372 501755633 0 485170906 580660849 7 821046998 134710475 549997467 250023456 726634397 501755642 69885688 3729526 391412330 373185703 50...
result:
wrong answer 1st lines differ - expected: '833235409', found: '876535316'