Submission #201578

#	Time	Username	Problem	Language	Result	Execution time	Memory
201578		ArKCa	Bob (COCI14_bob)	C++17	0 / 120	1079 ms	8568 KiB

bob

#include<bits/stdc++.h>
#define  f1   first
#define  s2   second
#define  pb   push_back
#define  pob  pop_back
#define  int  ll
#define  ll   long long 
#define  PII  pair<int,int> 
#define  N    1003

using namespace std;


int n,m,ans;
int st[4*N],dizi[N],sagtosol[N];
int matris[N][N];


void build(int v, int tl,int tr){
	if(tl==tr){
		st[v]=tl;
	}
	else{
		int tm=(tl+tr)/2;
		build( v*2, tl, tm );
		build( v*2+1, tm+1, tr );
		if(dizi[st[v*2]]<dizi[st[v*2+1]]){
			st[v]=st[v*2];
		}
		else{
			st[v]=st[v*2+1];
		}
	}
}
int query( int v, int tl, int tr, int l, int r ){
	if(l>r){
		return 0;
	}
	if(l==tl && r==tr){
		return st[v];
	}
	int tm=(tl+tr)/2;
	int allah,belani,versin;
	allah=query( v*2, tl, tm,l,min(tm,r) ); 
	belani=query( v*2+1, tm+1, tr,max(l,tm+1),r ); 
	if(dizi[allah]<dizi[belani]){
		versin=allah;
	}
	else{
		versin=belani;
	}
	return versin;
}

void calc(int ss,int se,int last,int kat){
	if(ss>se)
		return;
	if(se==ss){
		ans+=dizi[se];
		ans-=last;
		return;
	}
	int mn=query(1,1,m,ss,se);
	if(mn==0)return;
	for(int i=1;i<=m;i++){
		ans+=dizi[mn]*min(se-i+1,sagtosol[i]);
		ans-=last*min(se-i+1,sagtosol[i]);
	}
	calc(ss,mn-1,dizi[mn],kat);
	calc(mn+1,se,dizi[mn],kat);
}

int32_t main(){	    
	// freopen("a.gir","r",stdin);
	// freopen("a.cik","w",stdout);
	scanf("%lld %lld",&n,&m);
	dizi[0]=INT_MAX;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			scanf("%lld",&matris[i][j]);
		}
	}
	for(int i=1;i<=m;i++){
		dizi[i]=1;
	}
	sagtosol[m]=1;
	for(int i=m-1;i>0;i--){
		if(matris[1][i]==matris[1][i+1]){
			sagtosol[i]=sagtosol[i+1]+1;
		}
		else{
			sagtosol[i]=1;
		}
	}
	build(1,1,m);
	calc(1,m,0,1);
	for(int j=2;j<=n;j++){
		for(int i=1;i<=m;i++){
			if(matris[j-1][i]==matris[j][i])
				dizi[i]++;
			else
				dizi[i]=1;
		}
		sagtosol[m]=1;
		for(int i=m-1;i>0;i--){
			if(matris[j][i]==matris[j][i+1]){
				sagtosol[i]=sagtosol[i+1]+1;
			}
			else{
				sagtosol[i]=1;
			}
		}
		/*for(int i=1;i<=m;i++){
			printf("%lld ",dizi[i] );
		}
		printf("\n");*/
		build(1,1,m);
		calc(1,m,0,1);
		// printf("%lld\n",ans );
	}
	printf("%lld\n",ans );
}	

Compilation message (stderr)

bob.cpp: In function 'int32_t main()':
bob.cpp:76:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld %lld",&n,&m);
  ~~~~~^~~~~~~~~~~~~~~~~~~
bob.cpp:80:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%lld",&matris[i][j]);
    ~~~~~^~~~~~~~~~~~~~~~~~~~~~

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