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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
#395687#8330. Count off 3xlwangWA 8ms3900kbC++145.2kb2024-04-21 17:15:552024-04-21 17:15:56

Judging History

你现在查看的是最新测评结果

  • [2024-04-21 17:15:56]
  • 评测
  • 测评结果:WA
  • 用时:8ms
  • 内存:3900kb
  • [2024-04-21 17:15:55]
  • 提交

answer

#include<bits/stdc++.h>
#define fr(i,j,k) for(register int i=j;i<=k;++i)
#define rf(i,j,k) for(register int i=j;i>=k;--i)
#define foredge(i,j) for(register int i=head[j];i;i=e[i].nxt)
#define pb push_back
#define Times printf("Time:%.3lf\n",clock()/CLOCKS_PER_SEC)
using namespace std;
inline int read(){
	int x=0;
	bool f=0;
	char c=getchar();
	while(!isdigit(c)) f|=(c=='-'),c=getchar();
	while(isdigit(c)) x=(x<<3)+(x<<1)+(c^48),c=getchar();
	return f?-x:x;
}
inline void write(int x){
    if(x<0){putchar('-');x=-x;}
    if(x>9)write(x/10);
    putchar(x%10+'0');
}
inline void writeln(int x){write(x); puts("");}
inline void writepl(int x){write(x); putchar(' ');}
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
inline int randfind(int l,int r){return rnd()%(r-l+1)+l;}
//inline void init(){
//	int t=read();
//	while(t--) work();
//}
const int Maxn=1e5+10,mod=1e9+7;
inline void add(int &x,int y){
    x+=y;if(x>=mod) x-=mod;
}
int f1[7][7][7],f2[7][7][7];
int n;
char c[Maxn];
int ans;
inline void clear(){
    memset(f1,0,sizeof(f1)),memset(f2,0,sizeof(f2));
    ans=0;
}
int s1[Maxn][4],s2[Maxn][4];
inline int ksm(int x,int y,int mod){
    int sum=1;
    while(y){
        if(y&1) sum=sum*x%mod;
        y=y/2;x=x*x%mod;
    }
    return sum;
}
int g1[7][7][7],g2[7][7][7];
int a[Maxn];
int p1[8],p2[8],p3[8],p12[8][8],p23[8][8],p13[8][8],p123[8][8][8];
inline int query(int a1,int a2,int b1,int b2,int c1,int c2){
    int ans=0;
    fr(i,0,6) add(ans,p1[i]);
    // cout<<ans<<endl;
    add(ans,mod-p1[a1]);add(ans,mod-p1[a2]);add(ans,mod-p2[b1]);add(ans,mod-p2[b2]);add(ans,mod-p3[c1]);add(ans,mod-p3[c2]);
    // cout<<ans<<endl;
    add(ans,p12[a1][b1]);add(ans,p12[a1][b2]);add(ans,p12[a2][b1]);add(ans,p12[a2][b2]);
    add(ans,p13[a1][c1]);add(ans,p13[a1][c2]);add(ans,p13[a2][c1]);add(ans,p13[a2][c2]);
    add(ans,p23[b1][c1]);add(ans,p23[b1][c2]);add(ans,p23[b2][c1]);add(ans,p23[b2][c2]);
    add(ans,mod-p123[a1][b1][c1]);add(ans,mod-p123[a1][b1][c2]);add(ans,mod-p123[a1][b2][c1]);add(ans,mod-p123[a1][b2][c2]);
    add(ans,mod-p123[a2][b1][c1]);add(ans,mod-p123[a2][b1][c2]);add(ans,mod-p123[a2][b2][c1]);add(ans,mod-p123[a2][b2][c2]);
    return ans;
}
inline void getans(int id){
    memset(p1,0,sizeof(p1));memset(p2,0,sizeof(p2));memset(p3,0,sizeof(p3));
    memset(p12,0,sizeof(p12));memset(p13,0,sizeof(p13));memset(p23,0,sizeof(p23));
    memset(p123,0,sizeof(p123));
    fr(i,0,6) fr(j,0,6) fr(k,0,6){
        add(p1[i],f1[i][j][k]);add(p2[j],f1[i][j][k]);add(p3[k],f1[i][j][k]);
        add(p12[i][j],f1[i][j][k]);add(p13[i][k],f1[i][j][k]);add(p23[j][k],f1[i][j][k]);
        add(p123[i][j][k],f1[i][j][k]);
    }
    fr(i,0,6) fr(j,0,6) fr(k,0,6){
        if(!f2[i][j][k]) continue;
        int a1,a2,b1,b2,c1,c2;
        a1=(i-s1[id-1][1]+s2[id-1][1]+7)%7,a2=(21-i-s1[id-1][1]-s2[id-1][1])%7;
        b1=(j-s1[id-1][2]+s2[id-1][2]+7)%7,b2=(21-j-s1[id-1][2]-s2[id-1][2])%7;
        c1=(k-s1[id-1][3]+s2[id-1][3]+7)%7,c2=(21-k-s1[id-1][3]-s2[id-1][3])%7;
        // cout<<i<<' '<<j<<' '<<k<<endl;
        // cout<<a1<<' '<<a2<<' '<<b1<<' '<<b2<<' '<<c1<<' '<<c2<<endl;
        if(a2==a1) a2=7;
        if(b2==b1) b2=7;
        if(c2==c1) c2=7;
        add(ans,1ll*f2[i][j][k]*query(a1,a2,b1,b2,c1,c2)%mod);
        // cout<<ans<<endl;
    }
}
inline void trans(int id){
    if(id==n){
        f2[1][1][1]=1,f1[0][0][0]=1;
        return;
    }
    fr(i1,0,6) fr(i2,0,6) fr(i3,0,6) g1[i1][i2][i3]=f1[i1][i2][i3],g2[i1][i2][i3]=f2[i1][i2][i3];
    int n1,n2,n3;n1=ksm(1,n-id,7),n2=ksm(2,n-id,7),n3=ksm(3,n-id,7);
    if((n-id)&1) fr(i1,0,6) fr(i2,0,6) fr(i3,0,6) add(f1[(i1+n1)%7][(i2+n2)%7][(i3+n3)%7],g1[i1][i2][i3]);
    else fr(i1,0,6) fr(i2,0,6) fr(i3,0,6) add(f2[(i1+n1)%7][(i2+n2)%7][(i3+n3)%7],g2[i1][i2][i3]);
    // writeln(id);
    // puts("F1:");
    // fr(i,0,6) fr(j,0,6) fr(k,0,6){
    //     if(f1[i][j][k]) cout<<i<<' '<<j<<' '<<k<<' '<<f1[i][j][k]<<endl;
    // }
    // puts("F2:");
    // fr(i,0,6) fr(j,0,6) fr(k,0,6){
    //     if(f2[i][j][k]) cout<<i<<' '<<j<<' '<<k<<' '<<f2[i][j][k]<<endl;
    // }
}
inline void work(){
    scanf("%s",c+1);n=strlen(c+1);
    fr(i,1,n) a[i]=c[i]-'0';
    // fr(i,1,n) cout<<i<<' '<<a[i]<<endl;
    fr(i,1,n){
        fr(j,1,3) s1[i][j]=s1[i-1][j],s2[i][j]=s2[i-1][j];
        if((n-i)&1) fr(j,1,3) s1[i][j]=(s1[i][j]+ksm(j,n-i,7)*a[i])%7;
        else{
            fr(j,1,3){
                // cout<<i<<' '<<j<<' '<<ksm(j,n-i,7)*a[i]<<endl;
                s2[i][j]=(s2[i][j]+ksm(j,n-i,7)*a[i])%7;
            }
        }
    }
    if(s1[n][1]!=s2[n][1] && (s1[n][1]+s2[n][1])%7!=7 && s1[n][2]!=s2[n][2] && (s1[n][2]+s2[n][2])%7!=7 && s1[n][3]!=s2[n][3] && (s1[n][3]+s2[n][3])%7!=7 && a[n]) ++ans;
    // cout<<ans<<endl;
    // fr(i,1,n){
    //     writeln(i);
    //     fr(j,1,3) cout<<s1[i][j]<<' '<<s2[i][j]<<endl;
    // }
    rf(i,n,1){
        if(a[i] && i!=n) getans(i);
        // cout<<i<<' '<<ans<<endl;
        trans(i);
    }
    writeln(ans);
    clear();
}
inline void init(){
    int t=read();
    while(t--) work();
}
signed main(){
	// freopen("input.in","r",stdin);
	// freopen("output.out","w",stdout);
    init();
    // printf("\nTIME:%.3lf",(double)clock()/CLOCKS_PER_SEC);
	return 0;
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3900kb

input:

5
1
1010
110101
1000111000
101101001000

output:

1
2
15
114
514

result:

ok 5 number(s): "1 2 15 114 514"

Test #2:

score: -100
Wrong Answer
time: 8ms
memory: 3900kb

input:

10
1
11
1000
10111011
1000110100101001
11101110000001000011010011011000
110011000111110001101010101100100011010010101000011111001101011
11010111011101000010101111011111011011100001001101010011101011111111011011111101110110010011001101000001000111100010010111000010
10000000000000000000000000000000000...

output:

1
1
2
45
6592
814196699
193088128
849103726
497125329
363076921

result:

wrong answer 5th numbers differ - expected: '6591', found: '6592'