Submission #83873

#	Time	Username	Problem	Language	Result	Execution time	Memory
83873		farukkastamonuda	Soccer (JOI17_soccer)	C++14	100 / 100	760 ms	30028 KiB

soccer

#include <bits/stdc++.h>
#define fi first
#define se second
#define mp make_pair
#define lo long long 
#define inf 1000000000000000000
#define md 1000000007
#define pb push_back
#define li 100005
#define ii pair<lo int,lo int>
#define iii pair<lo int ,ii>
using namespace std;
typedef array<lo int,4> T;
lo int h,w,A,B,C,n,s[li],t[li],dist[505][505],dx[5]={0,-1,1,0},dy[5]={1,0,0,-1};
queue< iii > qq;
lo int dp[505][505][6];
priority_queue<T,vector<T>,greater<T>> q;
void tri(int p0,int p1,int z,lo int res){
	if(p0<0 || p1<0 || p0>h || p1>w) return ;
	if(dp[p0][p1][z]<=res) return ;
	q.push({dp[p0][p1][z]=res,p0,p1,z});
}
void bfs(){
	q.push({dp[s[1]][s[2]][4]=0,s[1],t[1],4});
	while(!q.empty()){
		auto a=q.top();
		q.pop();
		if(a[0]>dp[a[1]][a[2]][a[3]]) continue;
		if(a[3]<4){
			tri(a[1]+dx[a[3]],a[2]+dy[a[3]],a[3],a[0]+A);
			tri(a[1],a[2],4,dp[a[1]][a[2]][a[3]]);
		}
		else if(a[3]==4){
			tri(a[1],a[2],5,a[0]+C*dist[a[1]][a[2]]);
		}
		else{
			for(int i=0;i<=3;i++){
				tri(a[1],a[2],i,a[0]+B);
				tri(a[1]+dx[i],a[2]+dy[i],5,a[0]+C);
			}
			tri(a[1],a[2],4,a[0]);
		}
	}
	printf("%lld\n",dp[s[n]][t[n]][4]);
}
int main(){
	scanf("%lld %lld %lld %lld %lld %lld",&h,&w,&A,&B,&C,&n);
	for(int i=0;i<=h;i++){
		for(int j=0;j<=w;j++){
			dist[i][j]=inf;
			for(int k=0;k<=5;k++) dp[i][j][k]=inf;
		}
	}
	for(int i=1;i<=n;i++){
		scanf("%lld %lld",&s[i],&t[i]);
		qq.push(mp(0,mp(s[i],t[i])));
		dist[s[i]][t[i]]=0;
	}
	while(!qq.empty()){
		iii temp=qq.front();
		qq.pop();
		ii seh=temp.se;
		lo int cst=temp.fi;
		dist[seh.fi][seh.se]=cst;
		for(int i=0;i<=3;i++){
			lo int gox=dx[i]+seh.fi;
			lo int goy=dy[i]+seh.se;
			if(gox<0 || goy<0 || gox>h || goy>w || dist[gox][goy]!=inf) continue;
			dist[gox][goy]=cst+1;
			qq.push(mp(cst+1,mp(gox,goy)));
		}
	}
	//~ for(int i=0;i<=h;i++){
		//~ for(int j=0;j<=w;j++){
			//~ printf("%lld ",dist[i][j]);
		//~ }
		//~ printf("\n");
	//~ }
	bfs();
	return 0;
}

Compilation message (stderr)

soccer.cpp: In function 'int main()':
soccer.cpp:47:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld %lld %lld %lld %lld %lld",&h,&w,&A,&B,&C,&n);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
soccer.cpp:55:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld",&s[i],&t[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 30 / 30
• Subtask 3: 65 / 65