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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#375979 | #5116. Contests | schrodingerstom | WA | 3ms | 62616kb | C++14 | 2.7kb | 2024-04-03 19:13:32 | 2024-04-03 19:13:32 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
bool memBeg;
template<typename T,typename TT> void chkmin(T &x,TT y) {if(x>y) x=y;}
template<typename T,typename TT> void chkmax(T &x,TT y) {if(x<y) x=y;}
constexpr int mod=998244353;
void inc(int &x,int y) {x+=y; x-=(x>=mod)*mod;}
void dec(int &x,int y) {x-=y; x+=(x<0)*mod;}
constexpr int add(int x,int y) {return (x+y>=mod)?x+y-mod:x+y;}
constexpr int sub(int x,int y) {return (x<y)?x-y+mod:x-y;}
constexpr int quick_pow(int x,ll times,int ret=1) {
for(;times;times>>=1,x=1ll*x*x%mod) if(times&1) ret=1ll*ret*x%mod;
return ret;
}
constexpr int maxm=7;
constexpr int maxn=1e5+5;
constexpr int maxlg=20;//17
int n,m,a[maxm][maxn],pos[maxn][maxm],jp[maxn][maxlg][maxm];
bool memEn;
void fl() {
freopen(".in","r",stdin);
freopen(".out","w",stdout);
}
int main() {
fprintf(stderr,"%.24lf\n",fabs(&memEn-&memBeg)/1024.0/1024.0);
// fl();
scanf("%d%d",&n,&m);
for(int i=1;i<=m;i++) {
for(int j=1;j<=n;j++) {
scanf("%d",&a[i][j]);
pos[a[i][j]][i]=j;
}
}
memset(jp,0x3f,sizeof(jp));
for(int i=1;i<=m;i++) {
static int tmp[maxm];
memset(tmp,0x3f,sizeof(tmp));
for(int j=n;j>=1;j--) {
for(int t=1;t<=m;t++) {
chkmin(tmp[t],pos[a[i][j]][t]);
chkmin(jp[a[i][j]][0][t],tmp[t]);
}
}
}
for(int lg=1;(1<<lg)<=n;lg++) {
for(int i=1;i<=n;i++) {
for(int t=1;t<=m;t++) {
int x=a[t][jp[i][lg-1][t]];
for(int p=1;p<=m;p++) {
chkmin(jp[i][lg][p],jp[x][lg-1][p]);
}
}
}
}
int Q; scanf("%d",&Q);
while(Q--) {
int u,v;
scanf("%d%d",&u,&v);
if(u==v) {puts("0"); continue;}
static int tmp[maxm],ptmp[maxm];
memset(tmp,0x3f,sizeof(tmp));
for(int i=1;i<=m;i++) tmp[i]=pos[u][i];
auto check=[&]()->bool {
for(int i=1;i<=m;i++) if(tmp[i]<=pos[v][i]) return false;
return true;
};
if(!check()) {puts("1"); continue;}
int ret=0;
for(int lg=__lg(n);lg>=0;lg--) {
memcpy(ptmp,tmp,sizeof(int)*(m+1));
for(int i=1;i<=m;i++) {
int x=a[i][ptmp[i]];
for(int j=1;j<=m;j++) {
chkmin(tmp[j],jp[x][lg][j]);
}
}
if(check()) ret|=1<<lg;
else memcpy(tmp,ptmp,sizeof(int)*(m+1));
}
printf("%d\n",ret+2);
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 62468kb
input:
6 2 1 3 2 5 4 6 2 1 4 3 6 5 4 1 4 5 3 6 1 5 2
output:
1 2 5 3
result:
ok 4 number(s): "1 2 5 3"
Test #2:
score: -100
Wrong Answer
time: 3ms
memory: 62616kb
input:
998 5 1 2 6 3 4 5 7 11 8 9 14 12 13 10 15 16 18 19 20 17 23 22 21 26 24 25 27 29 30 28 32 31 34 33 37 38 39 35 40 36 41 43 42 46 44 48 45 47 51 49 50 56 52 57 53 54 55 62 58 59 63 64 60 65 66 61 67 69 70 68 71 73 74 75 72 78 77 79 82 76 81 85 84 80 86 87 83 88 90 91 89 92 96 98 94 95 97 101 93 103 1...
output:
94 1025 1 1 1 21 1 153 1025 1 19 1025 25 1 1 1 80 1 1 1 1 1025 1 36 102 1 1 1 30 92 1 1 1025 37 36 60 1 1 1 1 1 1 1 1 16 1025 1025 1 1 1025 1025 1 1 140 1 1 77 1 60 1 1 1 4 90 1 1 1025 36 93 1 1 17 148 1 1 1 136 1025 1025 1 28 1025 1025 32 180 1 1025 1025 1 1 1 56 1025 75 25 115 122 1 1025 1 1 2 1 1...
result:
wrong answer 2nd numbers differ - expected: '-1', found: '1025'