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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#39098 | #1269. New Equipments | wyhao | WA | 58ms | 3940kb | C++ | 2.5kb | 2022-07-08 13:24:54 | 2022-07-08 13:24:56 |
Judging History
answer
#include<cstdio>
#include<cstring>
#include<algorithm>
#include<queue>
#include<map>
using namespace std;
const int N=55,N1=3005,M=20005;
typedef long long ll;
int TT,n,m,S,T,cnt,num;
ll a[N],b[N],c[N],cst[M];
int to[M],nxt[M],f[M],h[N1];
void add(int i,int x,int y,int z,ll w){
to[i]=y;f[i]=z;nxt[i]=h[x];cst[i]=w;h[x]=i;
}
map<int,int>Map;
ll F(int i,int j){
return a[i]*j*j+b[i]*j+c[i];
}
struct node{
int val;ll key;
bool operator<(const node a)const{
return key>a.key;
}
}d[N1],p;
int tot;
bool cmp(node x,node y){
return x.key<y.key;
}
void get1(int i,int &l,int &r){
if(2*a[i]>=-b[i]){
l=1;r=n;
return;
}
if(2*a[i]*m<=-b[i]){
r=m;l=m-n+1;
return;
}
tot=1;int t=-b[i]/(a[i]*2);
d[1].val=t;d[1].key=F(i,t);
for(int i=1;i<=n;i++){
if(t-i>=1){
tot++;
d[tot].val=t-i;
d[tot].key=F(i,t-i);
}
if(t+i<=m){
tot++;
d[tot].val=t+i;
d[tot].key=F(i,t+i);
}
}
sort(d+1,d+tot+1,cmp);
l=m;r=1;
for(int i=1;i<=n;i++){
if(d[i].val<l) l=d[i].val;
if(d[i].val>r) r=d[i].val;
}
}
priority_queue<node>Q;
ll dis[N1];
int pre[N1];
bool vis[N1];
ll dfs(){
memset(dis,0x3f,sizeof dis);
memset(vis,0,sizeof vis);
while(!Q.empty()) Q.pop();
dis[S]=0;pre[S]=-1;
p.val=S;p.key=0;Q.push(p);
while(!Q.empty()){
int x=Q.top().val;Q.pop();
if(vis[x]) continue;
vis[x]=true;
if(x==T) return dis[T];
for(int i=h[x],y;i;i=nxt[i]){
y=to[i];
if(vis[y]) continue;
if(f[i] and dis[y]>dis[x]+cst[i]){
dis[y]=dis[x]+cst[i];
p.val=y;p.key=dis[y];
Q.push(p);
pre[y]=i;
}
}
}
return 0x3f3f3f3f3f3f3f3f;
}
void path(){
for(int t=pre[T];~t;t=pre[to[t^1]]){
f[t]--;f[t^1]++;
}
}
int main(){
// freopen("ex1.in","r",stdin);
scanf("%d",&TT);
while(TT--){
scanf("%d%d",&n,&m);num=n;
memset(h,0,sizeof h);
for(int i=1;i<=n;i++){
scanf("%lld%lld%lld",&a[i],&b[i],&c[i]);
}
Map.clear();cnt=1;
for(int i=1,l,r,k;i<=n;i++){
get1(i,l,r);
for(int j=l;j<=r;j++){
if(!Map[j]) Map[j]=++num;
k=Map[j];ll w=F(i,j);
add(++cnt,i,k,1,w);
add(++cnt,k,i,0,-w);
}
}
S=num+1;T=S+1;
for(int i=1;i<=n;i++){
add(++cnt,S,i,1,0);
add(++cnt,i,S,0,0);
}
for(int i=n+1;i<=num;i++){
add(++cnt,i,T,1,0);
add(++cnt,T,i,0,0);
}
ll ans=0;
for(int i=1;i<=n;i++){
ll k=dfs();
if(k!=0x3f3f3f3f3f3f3f3f){
ans+=k;path();
}
printf("%lld ",ans);
}
puts("");
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 2ms
memory: 3228kb
input:
1 3 5 2 3 10 2 -3 10 1 -1 4
output:
4 15 37
result:
ok single line: '4 15 37 '
Test #2:
score: -100
Wrong Answer
time: 58ms
memory: 3940kb
input:
10 50 50 2 -16 79 8 -21 54 8 -1 3 1 -7 47 5 -20 89 1 -2 47 2 -10 26 10 31 28 2 -16 37 6 -16 44 2 -8 100 3 -26 65 3 -6 91 10 -33 56 2 -7 22 2 -12 74 1 -3 7 7 -30 51 1 -4 8 1 -10 62 2 -5 5 1 -3 38 7 -32 57 4 -24 65 1 -8 97 7 -28 71 5 -13 71 2 -14 49 6 -33 100 2 7 69 8 -22 38 5 -23 88 7 20 57 7 -11 83 ...
output:
2 4 9 14 24 40 72 117 170 239 327 445 592 771 972 1202 1467 1772 2117 2506 2954 3461 4035 4690 5415 6223 7137 8145 9272 10499 11858 13366 15003 16798 18736 20810 23058 25517 28172 31062 34194 37566 41209 45136 49371 53924 58847 64143 69813 75884 4 9 17 25 33 43 57 78 107 146 194 266 356 461 590 744...
result:
wrong answer 4th lines differ - expected: '26947526765592 304751009110231...367599475065 290707331650233016', found: '0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ... 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 '