Submission #231772

#	Time	Username	Problem	Language	Result	Execution time	Memory
231772		jamielim	Coin Collecting (JOI19_ho_t4)	C++14	0 / 100	5 ms	384 KiB

joi2019_ho_t4

#include <bits/stdc++.h>
using namespace std;

int main(){
	int n;
	scanf("%d",&n);
	int x[2*n],y[2*n];
	long long ans=0;
	for(int i=0;i<2*n;i++){
		scanf("%d%d",&x[i],&y[i]);
		if(x[i]<1){ans+=(long long)(1-x[i]);x[i]=1;}
		else if(x[i]>n){ans+=(long long)(x[i]-n);x[i]=n;}
		if(y[i]<1){ans+=(long long)(1-y[i]);y[i]=1;}
		else if(y[i]>2){ans+=(long long)(y[i]-2);y[i]=2;}
	}
	int c=0;
	for(int i=0;i<2*n;i++)if(y[i]==1)c++;
	ans+=(long long)abs(n-c);
	sort(x,x+2*n);
	for(int i=0;i<2*n;i++){
		ans+=(long long)abs(x[i]-(i/2+1));
	}
	printf("%lld",ans);
}

Compilation message (stderr)

joi2019_ho_t4.cpp: In function 'int main()':
joi2019_ho_t4.cpp:6:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
joi2019_ho_t4.cpp:10:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&x[i],&y[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 8
• Subtask 2: 0 / 29
• Subtask 3: 0 / 63