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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 |
---|---|---|---|---|---|---|---|---|---|
#474107 | #4890. 这是一道集训队胡策题 | czc | 100 ✓ | 215ms | 126352kb | C++23 | 1.6kb | 2024-07-12 16:08:44 | 2024-07-12 16:08:45 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define ll long long
const int mod=998244353;
const int maxn=5005;
char s[maxn][maxn];
int n;
int cnta[maxn],cntb[maxn];
int c[maxn][maxn];
inline ll qpow(ll a,ll b){
ll ret=1;
for(;b;b>>=1,a=a*a%mod)
if(b&1) ret=ret*a%mod;
return ret;
}
ll F[maxn],S[maxn];
int main(){
scanf("%d",&n);
c[0][0]=c[1][0]=c[1][1]=1;
for(int i=2;i<=n;i++){
c[i][0]=1;
for(int j=1;j<=n;j++) c[i][j]=(c[i-1][j-1]+c[i-1][j])%mod;
}
for(int i=1;i<=n;i++) scanf("%s",s[i]+1);
for(int i=1;i<=n;i++){
int c1=0,c2=0;
for(int j=1;j<=n;j++){
if(s[i][j]=='1') c1++;
if(s[j][i]=='1') c2++;
}
cnta[c1]++,cntb[c2]++;
}
ll sum=0,sum2=0,f=1,ans=0;
for(int i=0;i<=n;i++) sum+=(ll)(n-i)*cnta[i];
ll f2=1;
for(int j=0;j<=n;j++) sum2+=(ll)(n-j)*cntb[j];
for(int y=0,j=n,cb=0;y<=n;y++){
F[y]=f2,S[y]=sum2;
if(y==n) continue;
if(cntb[j] && cntb[j]>cb){
f2=f2*qpow(c[cntb[j]][cb],mod-2)%mod;
sum2-=(n-j);
sum2+=j;
cb++;
f2=f2*(ll)c[cntb[j]][cb]%mod;
}
else{
j--,cb=1;
while(cntb[j]==0) j--;
sum2-=(n-j);
sum2+=j;
f2=f2*(ll)c[cntb[j]][cb]%mod;
}
}
for(int x=0,i=n,ca=0;x<=n;x++){
for(int y=0;y<=n;y++){
if(sum+S[y]==(ll)n*n+(ll)x*y+(ll)(n-x)*(n-y)){
ans=(ans+f*F[y]%mod)%mod;
}
}
if(x==n) continue;
if(cnta[i] && cnta[i]>ca){
f=f*qpow(c[cnta[i]][ca],mod-2)%mod;
sum-=(n-i);
sum+=i;
ca++;
f=f*(ll)c[cnta[i]][ca]%mod;
}
else{
i--,ca=1;
while(cnta[i]==0) i--;
sum-=(n-i);
sum+=i;
f=f*(ll)c[cnta[i]][ca]%mod;
}
}
printf("%lld",ans);
return 0;
}
这程序好像有点Bug,我给组数据试试?
詳細信息
Subtask #1:
score: 5
Accepted
Test #1:
score: 5
Accepted
time: 1ms
memory: 5996kb
input:
10 0000000000 0101111001 0101111001 0101111001 0101111001 0101111001 0101111001 0101111001 0101111001 0101111001
output:
591
result:
ok 1 number(s): "591"
Test #2:
score: 0
Accepted
time: 1ms
memory: 5804kb
input:
10 0000000000 0001100000 0001111111 0001111111 0001100000 0001111111 0001110100 0001110100 0001110100 0001110100
output:
47
result:
ok 1 number(s): "47"
Test #3:
score: 0
Accepted
time: 1ms
memory: 6044kb
input:
10 1000000000 1010000000 1010000000 1010111111 1010100111 1010100111 1010100111 1010100100 1010100100 1010100110
output:
30
result:
ok 1 number(s): "30"
Test #4:
score: 0
Accepted
time: 1ms
memory: 8012kb
input:
10 0000110001 0101100000 0100001111 1011000001 0011010000 1010011111 1000111100 1110111101 1000101100 1000110100
output:
2
result:
ok 1 number(s): "2"
Test #5:
score: 0
Accepted
time: 1ms
memory: 8020kb
input:
10 1000010100 1100001111 1111010111 1010000001 1000110111 0100001001 1000111110 0110100010 1010100010 1010110111
output:
2
result:
ok 1 number(s): "2"
Test #6:
score: 0
Accepted
time: 1ms
memory: 5804kb
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: 6040kb
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: 0
Accepted
time: 1ms
memory: 7828kb
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: 0
Accepted
time: 1ms
memory: 6088kb
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: 0
Accepted
time: 1ms
memory: 5964kb
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: 0
Accepted
time: 1ms
memory: 6084kb
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: 0
Accepted
time: 1ms
memory: 6048kb
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: 0
Accepted
time: 1ms
memory: 5840kb
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: 12464kb
input:
300 01110011110110110011100111010000101110110001000111111011100101101101101011110101110100110110001110111010101011111010010101001000100011001110110100110000111001011011100000011100000000000001101000010110110000110001110000010110100010110110111000110000100101110011111010001100110111001010000100110110...
output:
2
result:
ok 1 number(s): "2"
Test #15:
score: 0
Accepted
time: 0ms
memory: 12436kb
input:
300 00101101101001110001110111101010000101010101100001110010001101001011011110111000110110101101111100010010011111010011101011110001011011111110001110100110101010100111001110001100111011010110010010111101001001101000000000011101011000111100101000101110111011001111111000111000100111100110101001011101...
output:
2
result:
ok 1 number(s): "2"
Test #16:
score: 0
Accepted
time: 0ms
memory: 12248kb
input:
300 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
936335109
result:
ok 1 number(s): "936335109"
Test #17:
score: 0
Accepted
time: 0ms
memory: 14280kb
input:
300 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
124904823
result:
ok 1 number(s): "124904823"
Test #18:
score: 0
Accepted
time: 2ms
memory: 12376kb
input:
300 11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...
output:
923149686
result:
ok 1 number(s): "923149686"
Test #19:
score: 0
Accepted
time: 2ms
memory: 12476kb
input:
300 01111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...
output:
254929271
result:
ok 1 number(s): "254929271"
Test #20:
score: 0
Accepted
time: 3ms
memory: 14148kb
input:
300 11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...
output:
12177
result:
ok 1 number(s): "12177"
Subtask #4:
score: 5
Accepted
Test #21:
score: 5
Accepted
time: 215ms
memory: 126284kb
input:
5000 0000111111000001000100111100110001110111011000101000110111100011111110110011101001111001111101010001111101110011110101010011010010000000001111000111101111010010110100000110111101100000010111111110001001010100101110100010100000011100000101011011101010011111101011000110001001011010000010000101111...
output:
2
result:
ok 1 number(s): "2"
Test #22:
score: 0
Accepted
time: 199ms
memory: 126336kb
input:
5000 0010011001001111110110000001101010000101010111000001101101011100001001011101010000001111010001101001111000101001011011001000111110010001111011011101010000110000010100010110011010000110111110111100110100001010110010001011010010001001101110000000111110111111000110000011010011100001110011111010001...
output:
2
result:
ok 1 number(s): "2"
Test #23:
score: 0
Accepted
time: 189ms
memory: 126224kb
input:
5000 1100111111010100100110101001011111001111000111111010110110010101011010010001111010101001101110111111100100101111010111001111100001100101111111000010100011000110100010010110111111100001100010000111101011110111100010010000001110011110001110110001000101111010110011111001111001011011110010101000000...
output:
2
result:
ok 1 number(s): "2"
Subtask #5:
score: 35
Accepted
Test #24:
score: 35
Accepted
time: 111ms
memory: 126272kb
input:
5000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
828414647
result:
ok 1 number(s): "828414647"
Test #25:
score: 0
Accepted
time: 111ms
memory: 126240kb
input:
5000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
16621460
result:
ok 1 number(s): "16621460"
Test #26:
score: 0
Accepted
time: 210ms
memory: 126228kb
input:
5000 1010110111100100001010010010100011000101011011111111101001100001101101011001001110101011110101001110010011110111101001011010010001100100111010100100000011101101000100010001011001101100000000000000011001100101111101110010111101000000010001000101110111100011100110101001001000001101111010001111010...
output:
2
result:
ok 1 number(s): "2"
Test #27:
score: 0
Accepted
time: 106ms
memory: 126352kb
input:
5000 1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...
output:
541497915
result:
ok 1 number(s): "541497915"
Test #28:
score: 0
Accepted
time: 111ms
memory: 126260kb
input:
5000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
288388087
result:
ok 1 number(s): "288388087"
Test #29:
score: 0
Accepted
time: 107ms
memory: 126284kb
input:
5000 0111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...
output:
352199570
result:
ok 1 number(s): "352199570"
Test #30:
score: 0
Accepted
time: 103ms
memory: 126088kb
input:
5000 1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...
output:
410201481
result:
ok 1 number(s): "410201481"
Extra Test:
score: 0
Extra Test Passed