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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 |
---|---|---|---|---|---|---|---|---|---|
#524292 | #4890. 这是一道集训队胡策题 | nullptr_qwq | 100 ✓ | 298ms | 111088kb | C++20 | 2.3kb | 2024-08-19 15:06:43 | 2024-08-19 15:06:43 |
Judging History
answer
// Problem: #3627. 「2021 集训队互测」这是一道集训队胡策题
// Contest: LibreOJ
// URL: https://loj.ac/p/3627
// Memory Limit: 1024 MB
// Time Limit: 2000 ms
// Author: nullptr_qwq
//
// Powered by CP Editor (https://cpeditor.org)
#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define fi first
#define se second
#define inf 1e9
#define pii pair<int,int>
#define F(i,a,b) for(int i=a;i<=(b);i++)
#define dF(i,a,b) for(int i=a;i>=(b);i--)
#define wh(lzm) while(lzm--)
#define cmh(sjy) while(sjy--)
#define lowbit(x) (x&(-x))
#define HH printf("\n")
#define eb emplace_back
using namespace std;
int read(){
int x=0,f=1;char c=getchar();
while(c<'0'||c>'9'){if(c=='-') f=-1;c=getchar();}
while(c>='0'&&c<='9') x=(x<<3)+(x<<1)+(c^48),c=getchar();
return x*f;
}
const int mod=998244353,maxn=5005;
int qpow(int x,int y){
int rt=1;
for(;y;y>>=1,x=1ll*x*x%mod) if(y&1) rt=1ll*rt*x%mod;
return rt;
}
void inc(int &x,int y){ x=(x+y>=mod)?(x+y-mod):(x+y); }
void dec(int &x,int y){ x=(x>=y)?(x-y):(x+mod-y); }
void mul(int &x,int y){ x=1ll*x*y%mod; }
int add(int x,int y){ return (x+y>=mod)?(x+y-mod):(x+y); }
int sub(int x,int y){ return (x>=y)?(x-y):(x+mod-y); }
int prod(int x,int y){ return 1ll*x*y%mod; }
void chkmax(int &x,int y){ x=max(x,y); }
void chkmin(int &x,int y){ x=min(x,y); }
int n,a[maxn][maxn],inv[maxn<<1],fac[maxn<<1],pw[maxn<<1];
int C(int n,int m){ return (m>n||n<0||m<0)?0:1ll*fac[n]*inv[m]%mod*inv[n-m]%mod; }
bitset<maxn>mat[maxn],pre[maxn],suf[maxn];
vector<int>vec[maxn];
signed main(){
ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
cin>>n;
fac[0]=inv[0]=pw[0]=1;
int N=n<<1;
F(i,1,N) fac[i]=1ll*fac[i-1]*i%mod,pw[i]=add(pw[i-1],pw[i-1]);
inv[N]=qpow(fac[N],mod-2);
dF(i,N-1,1) inv[i]=1ll*inv[i+1]*(i+1)%mod;
F(i,1,n) F(j,1,n) {
char tmp; cin>>tmp;
a[i][j]=(tmp=='1');
}
F(i,1,n) {
F(j,1,n) if(a[i][j]) mat[i].set(j);
vec[mat[i].count()].push_back(i);
}
F(i,1,n){ pre[i]=pre[i-1]; for(int j:vec[i]) pre[i]|=mat[j]; }
F(i,1,n) suf[n+1].set(i);
dF(i,n,1){ suf[i]=suf[i+1]; for(int j:vec[i]) suf[i]&=mat[j]; }
int ans=0;
F(i,0,n) if((pre[i]|suf[i])==suf[i]){
inc(ans,pw[(int)vec[i].size()]-1);
inc(ans,C(suf[i].count()-pre[i].count(),i-pre[i].count()));
}
cout<<ans;
}
这程序好像有点Bug,我给组数据试试?
详细
Subtask #1:
score: 5
Accepted
Test #1:
score: 5
Accepted
time: 0ms
memory: 7720kb
input:
10 0000000000 0101111001 0101111001 0101111001 0101111001 0101111001 0101111001 0101111001 0101111001 0101111001
output:
591
result:
ok 1 number(s): "591"
Test #2:
score: 5
Accepted
time: 1ms
memory: 5692kb
input:
10 0000000000 0001100000 0001111111 0001111111 0001100000 0001111111 0001110100 0001110100 0001110100 0001110100
output:
47
result:
ok 1 number(s): "47"
Test #3:
score: 5
Accepted
time: 1ms
memory: 7904kb
input:
10 1000000000 1010000000 1010000000 1010111111 1010100111 1010100111 1010100111 1010100100 1010100100 1010100110
output:
30
result:
ok 1 number(s): "30"
Test #4:
score: 5
Accepted
time: 1ms
memory: 7708kb
input:
10 0000110001 0101100000 0100001111 1011000001 0011010000 1010011111 1000111100 1110111101 1000101100 1000110100
output:
2
result:
ok 1 number(s): "2"
Test #5:
score: 5
Accepted
time: 1ms
memory: 7668kb
input:
10 1000010100 1100001111 1111010111 1010000001 1000110111 0100001001 1000111110 0110100010 1010100010 1010110111
output:
2
result:
ok 1 number(s): "2"
Test #6:
score: 5
Accepted
time: 0ms
memory: 7644kb
input:
10 1011001000 1011111011 0111010011 0011110000 0000011100 0101000000 1001100000 1111010011 1110111101 1100010101
output:
2
result:
ok 1 number(s): "2"
Subtask #2:
score: 15
Accepted
Test #7:
score: 15
Accepted
time: 1ms
memory: 9920kb
input:
20 11110010101111111000 01000101111110100000 10110001010110111101 10111111011011110101 10110101011010111101 00010100011011001011 01111111001000101001 10101101011101011100 11011010110101011110 00010100101000001011 00001010100111101100 00100111010010101001 00000010010110110110 11011111100110111100 010...
output:
2
result:
ok 1 number(s): "2"
Test #8:
score: 15
Accepted
time: 1ms
memory: 7740kb
input:
20 01000110110000100100 00010110001100011000 11111000101101101010 10010001100000010100 01101101000000111100 10010111110101011101 00000101010000000110 00001100101111111110 11111110111001101001 00010000001000101011 00010010110110110011 01011011110010011110 01000101111111011101 00010111001101001110 101...
output:
2
result:
ok 1 number(s): "2"
Test #9:
score: 15
Accepted
time: 1ms
memory: 5704kb
input:
20 00000000000000000000 10011101011010000010 10011101011010000010 10011101011010000010 10011101011010000010 10011101011010000010 10011101011010000010 10011101011010000010 10011101011010000010 10011101011010000010 10011101011010000010 10011101011010000010 10011101011010000010 10011101011010000010 100...
output:
526847
result:
ok 1 number(s): "526847"
Test #10:
score: 15
Accepted
time: 0ms
memory: 7892kb
input:
20 00000000000000000000 11101100001001010011 11101100001001010011 11101100001001010011 11101100001001010011 11101100001001010011 11101100001001010011 11101100001001010011 11101100001001010011 11101100001001010011 11101100001001010011 11101100001001010011 11101100001001010011 11101100001001010011 111...
output:
526335
result:
ok 1 number(s): "526335"
Test #11:
score: 15
Accepted
time: 0ms
memory: 7720kb
input:
20 10000000000000000000 11111000110000000000 11111000110000000000 11111000111111111111 11111000111111111111 11111000111111111111 11111000110000000000 11111000111111111111 11111000110000000000 11111000111111111111 11111000111111111111 11111000111010011011 11111000111010011011 11111000111010011011 111...
output:
740
result:
ok 1 number(s): "740"
Test #12:
score: 15
Accepted
time: 0ms
memory: 7656kb
input:
20 10000000000000000000 11110100100000000000 11110100101111111111 11110100100000000000 11110100100000000000 11110100100000000000 11110100101111111111 11110100100000000000 11110100101111111111 11110100101111111111 11110100100000000000 11110100100010000000 11110100100010000000 11110100100010000000 111...
output:
1150
result:
ok 1 number(s): "1150"
Test #13:
score: 15
Accepted
time: 1ms
memory: 9764kb
input:
20 11111111111111111111 10100111111111111111 10100100000000000000 10100100000000000000 10100111111111111111 10100100000000000000 10100100000000000000 10100111001100101111 10100111001100101111 10100111001100100000 10100111001100101111 10100111001100100000 10100111001100100000 10100111001100101111 101...
output:
189
result:
ok 1 number(s): "189"
Subtask #3:
score: 40
Accepted
Test #14:
score: 40
Accepted
time: 0ms
memory: 14180kb
input:
300 01110011110110110011100111010000101110110001000111111011100101101101101011110101110100110110001110111010101011111010010101001000100011001110110100110000111001011011100000011100000000000001101000010110110000110001110000010110100010110110111000110000100101110011111010001100110111001010000100110110...
output:
2
result:
ok 1 number(s): "2"
Test #15:
score: 40
Accepted
time: 0ms
memory: 16152kb
input:
300 00101101101001110001110111101010000101010101100001110010001101001011011110111000110110101101111100010010011111010011101011110001011011111110001110100110101010100111001110001100111011010110010010111101001001101000000000011101011000111100101000101110111011001111111000111000100111100110101001011101...
output:
2
result:
ok 1 number(s): "2"
Test #16:
score: 40
Accepted
time: 2ms
memory: 12520kb
input:
300 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
936335109
result:
ok 1 number(s): "936335109"
Test #17:
score: 40
Accepted
time: 3ms
memory: 16124kb
input:
300 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
124904823
result:
ok 1 number(s): "124904823"
Test #18:
score: 40
Accepted
time: 2ms
memory: 12092kb
input:
300 11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...
output:
923149686
result:
ok 1 number(s): "923149686"
Test #19:
score: 40
Accepted
time: 2ms
memory: 12328kb
input:
300 01111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...
output:
254929271
result:
ok 1 number(s): "254929271"
Test #20:
score: 40
Accepted
time: 3ms
memory: 14380kb
input:
300 11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...
output:
12177
result:
ok 1 number(s): "12177"
Subtask #4:
score: 5
Accepted
Test #21:
score: 5
Accepted
time: 288ms
memory: 110820kb
input:
5000 0000111111000001000100111100110001110111011000101000110111100011111110110011101001111001111101010001111101110011110101010011010010000000001111000111101111010010110100000110111101100000010111111110001001010100101110100010100000011100000101011011101010011111101011000110001001011010000010000101111...
output:
2
result:
ok 1 number(s): "2"
Test #22:
score: 5
Accepted
time: 298ms
memory: 110960kb
input:
5000 0010011001001111110110000001101010000101010111000001101101011100001001011101010000001111010001101001111000101001011011001000111110010001111011011101010000110000010100010110011010000110111110111100110100001010110010001011010010001001101110000000111110111111000110000011010011100001110011111010001...
output:
2
result:
ok 1 number(s): "2"
Test #23:
score: 5
Accepted
time: 289ms
memory: 110740kb
input:
5000 1100111111010100100110101001011111001111000111111010110110010101011010010001111010101001101110111111100100101111010111001111100001100101111111000010100011000110100010010110111111100001100010000111101011110111100010010000001110011110001110110001000101111010110011111001111001011011110010101000000...
output:
2
result:
ok 1 number(s): "2"
Subtask #5:
score: 35
Accepted
Test #24:
score: 35
Accepted
time: 201ms
memory: 110752kb
input:
5000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
828414647
result:
ok 1 number(s): "828414647"
Test #25:
score: 35
Accepted
time: 196ms
memory: 110816kb
input:
5000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
16621460
result:
ok 1 number(s): "16621460"
Test #26:
score: 35
Accepted
time: 291ms
memory: 110792kb
input:
5000 1010110111100100001010010010100011000101011011111111101001100001101101011001001110101011110101001110010011110111101001011010010001100100111010100100000011101101000100010001011001101100000000000000011001100101111101110010111101000000010001000101110111100011100110101001001000001101111010001111010...
output:
2
result:
ok 1 number(s): "2"
Test #27:
score: 35
Accepted
time: 174ms
memory: 111088kb
input:
5000 1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...
output:
541497915
result:
ok 1 number(s): "541497915"
Test #28:
score: 35
Accepted
time: 205ms
memory: 111044kb
input:
5000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
288388087
result:
ok 1 number(s): "288388087"
Test #29:
score: 35
Accepted
time: 193ms
memory: 110776kb
input:
5000 0111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...
output:
352199570
result:
ok 1 number(s): "352199570"
Test #30:
score: 35
Accepted
time: 204ms
memory: 110920kb
input:
5000 1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...
output:
410201481
result:
ok 1 number(s): "410201481"
Extra Test:
score: 0
Extra Test Passed