This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#pragma GCC diagnostic error "-std=c++11"
#pragma GCC target("avx")
#pragma GCC optimize(3)
#pragma GCC optimize("Ofast")
#pragma GCC optimize("inline")
#pragma GCC optimize("-fgcse")
#pragma GCC optimize("-fgcse-lm")
#pragma GCC optimize("-fipa-sra")
#pragma GCC optimize("-ftree-pre")
#pragma GCC optimize("-ftree-vrp")
#pragma GCC optimize("-fpeephole2")
#pragma GCC optimize("-ffast-math")
#pragma GCC optimize("-fsched-spec")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-falign-jumps")
#pragma GCC optimize("-falign-loops")
#pragma GCC optimize("-falign-labels")
#pragma GCC optimize("-fdevirtualize")
#pragma GCC optimize("-fcaller-saves")
#pragma GCC optimize("-fcrossjumping")
#pragma GCC optimize("-fthread-jumps")
#pragma GCC optimize("-funroll-loops")
#pragma GCC optimize("-fwhole-program")
#pragma GCC optimize("-freorder-blocks")
#pragma GCC optimize("-fschedule-insns")
#pragma GCC optimize("inline-functions")
#pragma GCC optimize("-ftree-tail-merge")
#pragma GCC optimize("-fschedule-insns2")
#pragma GCC optimize("-fstrict-aliasing")
#pragma GCC optimize("-fstrict-overflow")
#pragma GCC optimize("-falign-functions")
#pragma GCC optimize("-fcse-skip-blocks")
#pragma GCC optimize("-fcse-follow-jumps")
#pragma GCC optimize("-fsched-interblock")
#pragma GCC optimize("-fpartial-inlining")
#pragma GCC optimize("no-stack-protector")
#pragma GCC optimize("-freorder-functions")
#pragma GCC optimize("-findirect-inlining")
#pragma GCC optimize("-fhoist-adjacent-loads")
#pragma GCC optimize("-frerun-cse-after-loop")
#pragma GCC optimize("inline-small-functions")
#pragma GCC optimize("-finline-small-functions")
#pragma GCC optimize("-ftree-switch-conversion")
#pragma GCC optimize("-foptimize-sibling-calls")
#pragma GCC optimize("-fexpensive-optimizations")
#pragma GCC optimize("-funsafe-loop-optimizations")
#pragma GCC optimize("inline-functions-called-once")
#pragma GCC optimize("-fdelete-null-pointer-checks")
#include "soccer.h"
#include<bits/stdc++.h>
#define fs first
#define sn second
#define mp make_pair
#define MX 2023
using namespace std;
int n,now,num,ans,sl,sr,l,r,lst[MX],nxt[MX],a[MX][MX],sum[MX][MX],stl[MX][20],str[MX][20],fl[MX][MX],fr[MX][MX];
pair<int,pair<int,int> >f[MX][MX],sav;
vector<pair<int,int> >d[MX];
int getl(int l,int r)
{
int k=__lg(r-l+1);
return min(stl[l][k],stl[r-(1<<k)+1][k]);
}
int getr(int l,int r)
{
int k=__lg(r-l+1);
return min(str[l][k],str[r-(1<<k)+1][k]);
}
int biggest_stadium(int N, std::vector<std::vector<int>> F)
{
n=N;
for(int i=1;i<=n;++i)
for(int j=1;j<=n;++j){
a[i][j]=F[i-1][j-1];
sum[i][j]=sum[i][j-1]+a[i][j];
}
for(int i=1;i<=n;++i){
now=1;
for(int j=1;j<=n;++j){
if(a[i][j])now=j+1;
else fl[i][j]=j-now+1;
}
now=n;
for(int j=n;j>0;--j){
if(a[i][j])now=j-1;
else fr[i][j]=now-j+1;
}
}
for(int j=1;j<=n;++j){
for(int i=1;i<=n;++i){
stl[i][0]=fl[i][j];
str[i][0]=fr[i][j];
}
for(int k=1;k<=11;++k){
for(int i=1;i<=n;++i){
stl[i][k]=min(stl[i][k-1],(i+(1<<k-1)<=n?stl[i+(1<<k-1)][k-1]:n));
str[i][k]=min(str[i][k-1],(i+(1<<k-1)<=n?str[i+(1<<k-1)][k-1]:n));
}
}
for(int i=1;i<=n;++i)
d[i].clear();
lst[1]=1;
for(int i=2;i<=n;++i){
if(fl[i][j]==fl[i-1][j]&&fr[i][j]==fr[i-1][j])lst[i]=lst[i-1];
else lst[i]=i;
}
nxt[n]=n;
for(int i=n-1;i>0;--i){
if(fl[i][j]==fl[i+1][j]&&fr[i][j]==fr[i+1][j])nxt[i]=nxt[i+1];
else nxt[i]=i;
}
for(int i=1;i<=n;++i){
if(i>1&&fl[i-1][j]>=fl[i][j]&&fr[i-1][j]>=fr[i][j]&&(!(fl[i-1][j]==fl[i][j]&&fr[i-1][j]==fr[i][j])))continue;
if(i<n&&fl[i+1][j]>=fl[i][j]&&fr[i+1][j]>=fr[i][j])continue;
f[i][i]=mp(max(0,fl[i][j]+fr[i][j]-1),mp(fl[i][j],fr[i][j]));
d[1].push_back(mp(i,i));
}
for(int len=1;len<=n;++len){
int i,k;
for(int g=0;g<d[len].size();++g){
i=d[len][g].fs;k=d[len][g].sn;
sl=f[i][k].sn.fs;
sr=f[i][k].sn.sn;
// if(j==5)
// printf("%d %d %d %d (%d %d)\n",j,i,k,f[i][k].fs,sl,sr);
if(sl+sr<1)continue;
ans=max(ans,f[i][k].fs);
if(i>1){
sl=min(f[i][k].sn.fs,fl[i-1][j]);
sr=min(f[i][k].sn.sn,fr[i-1][j]);
if(sl+sr>0){
l=1;r=lst[i-1];
while(l<r){
int mid=l+r>>1;
if(getl(mid,i-1)>=sl&&getr(mid,i-1)>=sr)r=mid;
else l=mid+1;
}
// printf("%d %d %d:%d ----->>>> %d %d:%d (%d %d)\n",j,i,k,f[i][k].fs,l,k,f[i][k].fs+max(sr+sl-1,0)*(i-l),sl,sr);
sav=mp(f[i][k].fs+max(sr+sl-1,0)*(i-l),mp(sl,sr));
if(sav.fs>0&&sav>f[l][k]){
if(f[l][k].fs==0)d[k-l+1].push_back(mp(l,k));
f[l][k]=sav;
}
}
}
if(k<n){
sl=min(f[i][k].sn.fs,fl[k+1][j]);
sr=min(f[i][k].sn.sn,fr[k+1][j]);
// printf("%d %d\n",fl[k+1][j],fr[k+1][j]);
if(sl+sr>0){
l=nxt[k+1];r=n;
while(l<r){
// printf("%d %d\n",l,r);
int mid=l+r+1>>1;
if(getl(k+1,mid)>=sl&&getr(k+1,mid)>=sr)l=mid;
else r=mid-1;
}
// printf("%d %d %d:%d ----->>>> %d %d:%d (%d %d)\n",j,i,k,f[i][k].fs,i,l,f[i][k].fs+max(sr+sl-1,0)*(l-k),sl,sr);
sav=mp(f[i][k].fs+max(sr+sl-1,0)*(l-k),mp(sl,sr));
if(sav.fs>0&&sav>f[i][l]){
if(f[i][l].fs==0)d[l-i+1].push_back(mp(i,l));
f[i][l]=sav;
}
}
}
f[i][k]=mp(0,mp(0,0));
}
// for(int i=1;i<=n-len+1;++i){
// int k=i+len-1;
// ans=max(ans,f[i][k].fs);
// if(i>1){
// sl=min(f[i][k].sn.fs,fl[i-1][j]);
// sr=min(f[i][k].sn.sn,fr[i-1][j]);
// f[i-1][k]=max(f[i-1][k],mp(f[i][k].fs+max(sl+sr-1,0),mp(sl,sr)));
// }
// if(k<n){
// sl=min(f[i][k].sn.fs,fl[k+1][j]);
// sr=min(f[i][k].sn.sn,fr[k+1][j]);
// f[i][k+1]=max(f[i][k+1],mp(f[i][k].fs+max(sl+sr-1,0),mp(sl,sr)));
// }
// }
}
}
return ans;
}
Compilation message (stderr)
soccer.cpp:1:30: warning: '-std=c++11' is not an option that controls warnings [-Wpragmas]
1 | #pragma GCC diagnostic error "-std=c++11"
| ^~~~~~~~~~~~
soccer.cpp:23:39: warning: bad option '-fwhole-program' to pragma 'optimize' [-Wpragmas]
23 | #pragma GCC optimize("-fwhole-program")
| ^
soccer.cpp:30:41: warning: bad option '-fstrict-overflow' to pragma 'optimize' [-Wpragmas]
30 | #pragma GCC optimize("-fstrict-overflow")
| ^
soccer.cpp:32:41: warning: bad option '-fcse-skip-blocks' to pragma 'optimize' [-Wpragmas]
32 | #pragma GCC optimize("-fcse-skip-blocks")
| ^
soccer.cpp:46:51: warning: bad option '-funsafe-loop-optimizations' to pragma 'optimize' [-Wpragmas]
46 | #pragma GCC optimize("-funsafe-loop-optimizations")
| ^
In file included from soccer.cpp:51:
soccer.h:3:59: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
3 | int biggest_stadium(int N, std::vector<std::vector<int>> F);
| ^
soccer.h:3:59: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
soccer.h:3:59: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
soccer.h:3:59: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
soccer.h:3:59: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
soccer.h:3:59: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
soccer.h:3:59: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
soccer.h:3:59: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
soccer.cpp:61:21: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
61 | int getl(int l,int r)
| ^
soccer.cpp:61:21: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
soccer.cpp:61:21: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
soccer.cpp:61:21: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
soccer.cpp:66:21: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
66 | int getr(int l,int r)
| ^
soccer.cpp:66:21: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
soccer.cpp:66:21: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
soccer.cpp:66:21: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
soccer.cpp:71:59: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
71 | int biggest_stadium(int N, std::vector<std::vector<int>> F)
| ^
soccer.cpp:71:59: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
soccer.cpp:71:59: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
soccer.cpp:71:59: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
soccer.cpp: In function 'int biggest_stadium(int, std::vector<std::vector<int> >)':
soccer.cpp:99:51: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
99 | stl[i][k]=min(stl[i][k-1],(i+(1<<k-1)<=n?stl[i+(1<<k-1)][k-1]:n));
| ~^~
soccer.cpp:99:69: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
99 | stl[i][k]=min(stl[i][k-1],(i+(1<<k-1)<=n?stl[i+(1<<k-1)][k-1]:n));
| ~^~
soccer.cpp:100:51: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
100 | str[i][k]=min(str[i][k-1],(i+(1<<k-1)<=n?str[i+(1<<k-1)][k-1]:n));
| ~^~
soccer.cpp:100:69: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
100 | str[i][k]=min(str[i][k-1],(i+(1<<k-1)<=n?str[i+(1<<k-1)][k-1]:n));
| ~^~
soccer.cpp:123:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
123 | for(int g=0;g<d[len].size();++g){
| ~^~~~~~~~~~~~~~
soccer.cpp:138:38: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
138 | int mid=l+r>>1;
| ~^~
soccer.cpp:158:40: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
158 | int mid=l+r+1>>1;
| ~~~^~
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