Submission #104331

#	Time	Username	Problem	Language	Result	Execution time	Memory
104331		ihdignite	Coin Collecting (JOI19_ho_t4)	C++14	0 / 100	3 ms	384 KiB

joi2019_ho_t4

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

#define ll long long

const int mxN=1e5;
int n, c[mxN][2];
ll a1;

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);

	cin >> n;
	for(int i=0, x, y; i<2*n; ++i) {
		cin >> x >> y;
		if(x<1) {
			a1+=1-x;
			x=1;
		}
		if(x>n) {
			a1+=x-n;
			x=n;
		}
		if(y<1) {
			a1+=1-y;
			y=1;
		}
		if(y>2) {
			a1+=y-2;
			y=2;
		}
		++c[x-1][y-1];
	}
	for(int i1=0, i2=0, j=0; i1<n||i2<n; ) {
		while(!c[j][0]&&!c[j][1])
			++j;
		if(c[j][0]&&c[j][1]&&i1<n&&i2<n) {
			a1+=abs(i1-j)+abs(i2-j);
			--c[j][0], --c[j][1];
			++i1, ++i2;
		} else if(c[j][0]) {
			if(i1<=i2||i1<=j&&j<n-1&&c[j+1][1]) {
				a1+=abs(i1-j);
				++i1;
			} else {
				a1+=abs(i2-j)+1;
				++i2;
			}
			--c[j][0];
		} else {
			if(i2<=i1||i2<=j&&j<n-1&&c[j+1][0]) {
				a1+=abs(i2-j);
				++i2;
			} else {
				a1+=abs(i1-j)+1;
				++i1;
			}
			--c[j][1];
		}
	}
	cout << a1;
}

Compilation message (stderr)

joi2019_ho_t4.cpp: In function 'int main()':
joi2019_ho_t4.cpp:43:27: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
    if(i1<=i2||i1<=j&&j<n-1&&c[j+1][1]) {
               ~~~~~~~~~~~~^~~~~~~~~~~
joi2019_ho_t4.cpp:52:27: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
    if(i2<=i1||i2<=j&&j<n-1&&c[j+1][0]) {
               ~~~~~~~~~~~~^~~~~~~~~~~

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