oj.uz

Submission #14915

# Submission time Handle Problem Language Result Execution time Memory
14915 2015-07-06T00:30:44 Z gs13068 Palembang Bridges (APIO15_bridge) C++
63 / 100
 509 ms 6328 KB 
#include<cstdio>
#include<algorithm>

int p[111111];
int s[111111];
int q[111111];
int t[111111];
char pp[11],qq[11];
std::pair<int,int> d[444444];
int dn;

int main()
{
	//freopen("input","r",stdin);
	long long res=0;
	int i,j,n,m;
	int fir,sec;
	long long min,now,ang;
	scanf("%d%d",&m,&n);
	if(m==1)
	{
		j=0;
        for(i=0;i<n;i++)
        {
			scanf("%s%d%s%d",pp,&s[i],qq,&t[i]);
			p[i]=pp[0]-'A';
			q[i]=qq[0]-'A';
			if(p[i]!=q[i])
			{
				j++;
				d[dn++]=std::make_pair(std::min(s[i],t[i]),-1);
				d[dn++]=std::make_pair(std::max(s[i],t[i]),-1);
			}
        }
        std::sort(d,d+dn);
        for(i=0;i<dn;i++)
        {
			j+=d[i].second;
            if(j<=0)break;
        }
        for(j=0;j<n;j++)
        {
			if(p[j]!=q[j])res+=std::abs(s[j]-d[i].first)+std::abs(t[j]-d[i].first)+1;
			else res+=std::abs(s[j]-t[j]);
        }
        printf("%lld\n",res);
		return 0;
	}

	for(i=0;i<n;i++)
	{
		scanf("%s%d%s%d",pp,&s[i],qq,&t[i]);
		p[i]=pp[0]-'A';
		q[i]=qq[0]-'A';
	}

	if(n<=1000)
	{
		res=9e18;
        for(i=0;i<n;i++)
        {
			fir=s[i];
			dn=0;
			for(j=0;j<n;j++)if(p[j]!=q[j]&&(std::max(s[j],t[j])<fir||std::min(s[j],t[j])>fir))
			{
				d[dn++]=std::make_pair(std::min(fir,s[j]+t[j]-fir),1);
				d[dn++]=std::make_pair(std::max(fir,s[j]+t[j]-fir),1);
				d[dn++]=std::make_pair(std::min(s[j],t[j]),-1);
				d[dn++]=std::make_pair(std::max(s[j],t[j]),-1);
			}
			std::sort(d,d+dn);
			min=now=ang=0;
			sec=0;

			for(j=0;j<dn;j++)
			{
				if(j)now+=ang*(d[j].first-d[j-1].first);
				ang+=d[j].second;
				if(now>min)
				{
					min=now;
					sec=d[j].first;
				}
			}

			now=0;
			for(j=0;j<n;j++)
			{
				if(p[j]!=q[j])now+=std::min(std::abs(s[j]-fir)+std::abs(t[j]-fir),std::abs(s[j]-sec)+std::abs(t[j]-sec))+1;
				else now+=std::abs(s[j]-t[j]);
			}

			res=std::min(res,now);

			fir=t[i];
			dn=0;
			for(j=0;j<n;j++)if(p[j]!=q[j]&&(std::max(s[j],t[j])<fir||std::min(s[j],t[j])>fir))
			{
				d[dn++]=std::make_pair(std::min(fir,s[j]+t[j]-fir),1);
				d[dn++]=std::make_pair(std::max(fir,s[j]+t[j]-fir),1);
				d[dn++]=std::make_pair(std::min(s[j],t[j]),-1);
				d[dn++]=std::make_pair(std::max(s[j],t[j]),-1);
			}
			std::sort(d,d+dn);
			min=now=ang=0;
			sec=0;

			for(j=0;j<dn;j++)
			{
				if(j)now+=ang*(d[j].first-d[j-1].first);
				ang+=d[j].second;
				if(now>min)
				{
					min=now;
					sec=d[j].first;
				}
			}

			now=0;
			for(j=0;j<n;j++)
			{
				if(p[j]!=q[j])now+=std::min(std::abs(s[j]-fir)+std::abs(t[j]-fir),std::abs(s[j]-sec)+std::abs(t[j]-sec))+1;
				else now+=std::abs(s[j]-t[j]);
			}

			res=std::min(res,now);
        }

        printf("%lld\n",res);
        return 0;
	}

	sec=s[0];
	for(i=1;i<=10;i++)
	{
		fir=sec;
		dn=0;
        for(j=0;j<n;j++)if(p[j]!=q[j]&&(std::max(s[j],t[j])<fir||std::min(s[j],t[j])>fir))
        {
            d[dn++]=std::make_pair(std::min(fir,s[j]+t[j]-fir),1);
            d[dn++]=std::make_pair(std::max(fir,s[j]+t[j]-fir),1);
            d[dn++]=std::make_pair(std::min(s[j],t[j]),-1);
            d[dn++]=std::make_pair(std::max(s[j],t[j]),-1);
        }
        std::sort(d,d+dn);
		min=now=ang=0;
		sec=s[i%n];
		for(j=0;j<dn;j++)
		{
			if(j)now+=ang*(d[j].first-d[j-1].first);
			ang+=d[j].second;
			if(now>min)
			{
				min=now;
				sec=d[j].first;
			}
		}
	}

	for(j=0;j<n;j++)
	{
		if(p[j]!=q[j])res+=std::min(std::abs(s[j]-fir)+std::abs(t[j]-fir),std::abs(s[j]-sec)+std::abs(t[j]-sec))+1;
		else res+=std::abs(s[j]-t[j]);
	}

	printf("%lld\n",res);
}

Compilation message

bridge.cpp: In function 'int main()':
bridge.cpp:19:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&m,&n);
                     ^
bridge.cpp:25:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%s%d%s%d",pp,&s[i],qq,&t[i]);
                                       ^
bridge.cpp:52:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s%d%s%d",pp,&s[i],qq,&t[i]);
                                      ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6328 KB Output is correct
2 Correct 0 ms 6328 KB Output is correct
3 Correct 0 ms 6328 KB Output is correct
4 Correct 0 ms 6328 KB Output is correct
5 Correct 3 ms 6328 KB Output is correct
6 Correct 0 ms 6328 KB Output is correct
7 Correct 3 ms 6328 KB Output is correct
8 Correct 0 ms 6328 KB Output is correct
9 Correct 3 ms 6328 KB Output is correct
10 Correct 0 ms 6328 KB Output is correct
11 Correct 0 ms 6328 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6328 KB Output is correct
2 Correct 0 ms 6328 KB Output is correct
3 Correct 0 ms 6328 KB Output is correct
4 Correct 0 ms 6328 KB Output is correct
5 Correct 0 ms 6328 KB Output is correct
6 Correct 3 ms 6328 KB Output is correct
7 Correct 0 ms 6328 KB Output is correct
8 Correct 0 ms 6328 KB Output is correct
9 Correct 0 ms 6328 KB Output is correct
10 Correct 0 ms 6328 KB Output is correct
11 Correct 3 ms 6328 KB Output is correct
12 Correct 29 ms 6328 KB Output is correct
13 Correct 63 ms 6328 KB Output is correct
14 Correct 59 ms 6328 KB Output is correct
15 Correct 43 ms 6328 KB Output is correct
16 Correct 53 ms 6328 KB Output is correct
17 Correct 46 ms 6328 KB Output is correct
18 Correct 53 ms 6328 KB Output is correct
19 Correct 73 ms 6328 KB Output is correct
20 Correct 36 ms 6328 KB Output is correct
21 Correct 66 ms 6328 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6328 KB Output is correct
2 Correct 0 ms 6328 KB Output is correct
3 Correct 3 ms 6328 KB Output is correct
4 Correct 3 ms 6328 KB Output is correct
5 Correct 0 ms 6328 KB Output is correct
6 Correct 0 ms 6328 KB Output is correct
7 Correct 3 ms 6328 KB Output is correct
8 Correct 3 ms 6328 KB Output is correct
9 Correct 0 ms 6328 KB Output is correct
10 Correct 3 ms 6328 KB Output is correct
11 Correct 3 ms 6328 KB Output is correct
12 Correct 6 ms 6328 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 6328 KB Output is correct
2 Correct 0 ms 6328 KB Output is correct
3 Correct 0 ms 6328 KB Output is correct
4 Correct 3 ms 6328 KB Output is correct
5 Correct 3 ms 6328 KB Output is correct
6 Correct 0 ms 6328 KB Output is correct
7 Correct 0 ms 6328 KB Output is correct
8 Correct 3 ms 6328 KB Output is correct
9 Correct 3 ms 6328 KB Output is correct
10 Correct 6 ms 6328 KB Output is correct
11 Correct 3 ms 6328 KB Output is correct
12 Correct 3 ms 6328 KB Output is correct
13 Correct 49 ms 6328 KB Output is correct
14 Correct 353 ms 6328 KB Output is correct
15 Correct 333 ms 6328 KB Output is correct
16 Correct 6 ms 6328 KB Output is correct
17 Correct 123 ms 6328 KB Output is correct
18 Correct 43 ms 6328 KB Output is correct
19 Correct 26 ms 6328 KB Output is correct
20 Correct 363 ms 6328 KB Output is correct
21 Correct 149 ms 6328 KB Output is correct
22 Correct 503 ms 6328 KB Output is correct
23 Correct 193 ms 6328 KB Output is correct
24 Correct 469 ms 6328 KB Output is correct

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 6328 KB Output is correct
2 Correct 3 ms 6328 KB Output is correct
3 Correct 0 ms 6328 KB Output is correct
4 Correct 3 ms 6328 KB Output is correct
5 Correct 0 ms 6328 KB Output is correct
6 Correct 0 ms 6328 KB Output is correct
7 Correct 0 ms 6328 KB Output is correct
8 Correct 3 ms 6328 KB Output is correct
9 Correct 3 ms 6328 KB Output is correct
10 Correct 3 ms 6328 KB Output is correct
11 Correct 0 ms 6328 KB Output is correct
12 Correct 3 ms 6328 KB Output is correct
13 Correct 49 ms 6328 KB Output is correct
14 Correct 369 ms 6328 KB Output is correct
15 Correct 323 ms 6328 KB Output is correct
16 Correct 3 ms 6328 KB Output is correct
17 Correct 99 ms 6328 KB Output is correct
18 Correct 46 ms 6328 KB Output is correct
19 Correct 13 ms 6328 KB Output is correct
20 Correct 363 ms 6328 KB Output is correct
21 Correct 156 ms 6328 KB Output is correct
22 Correct 499 ms 6328 KB Output is correct
23 Correct 206 ms 6328 KB Output is correct
24 Correct 509 ms 6328 KB Output is correct
25 Correct 59 ms 6328 KB Output is correct
26 Correct 203 ms 6328 KB Output is correct
27 Correct 263 ms 6328 KB Output is correct
28 Incorrect 273 ms 6328 KB Output isn't correct
29 Halted 0 ms 0 KB -