⢸
⢸
⢸⡀⠀⠀⠀⠀⠀⠀⠀⠀⣠⣶⣿⣶⣄
⢿⣿⣄⠀⠀⠀⠀⠀⠀⠀⣿⣿⣿⣿⣿⠀⠀⠀⠀⠀⠀⠀⠀⣀⣤⣄
⠀⠹⣿⣧⣀⣠⣴⣾⣷⣿⣷⠾⢷⠋⠀⠀⠀⠀⠀⠀⠀⣼⣿⣿⣿⡷
⠀⠀⠈⢿⡿⠟⢻⣿⣿⣿⣿⣿⣿⣷⠀⠀⠀⠀⠀⠀⠀⠹⣿⣿⣿⡟
⠀⠀⠀⠀⠀⠀⣼⣿⣿⣿⣿⣿⡟⢿⣿⣄⠀⠀⠀⠀⢠⣶⣾⣿⡇
⠀⠀⠀⠀⠀⠀⣿⣿⣿⣿⣿⣿⡇⠀⠙⠿⡿⢆⣴⣿⣿⣿⣿⡇
⠀⠀⠀⠀⠀⢰⣿⣿⣿⣿⣿⣿⠀⠀⣤⣶⣾⣿⣿⣿⣿⣷⠹⣷⣤⣤⣄⣀⡀
⠀⠀⠀⠀⠀⢸⣿⣿⡏⣿⣿⣿⢀⣾⣿⣿⣿⣿⣏⠀⠀⢀⣀⣈⣉⣉⣉⣙⣁⣀
⠀⠀⠀⠀⠀⢸⣿⣿⡇⣿⣿⢏⣾⣿⣿⣿⣿⣿⣿⣆
⠀⠀⠀⠀⠀⢸⣿⣿⡇⣿⣿⣷⠈⠉⠙⠛⢻⣭⣷
⠀⠀⠀⠀⠀⢸⣿⣿⡇⣿⣿⣿⠀⠀⠀⠀⠀⢹⣿⣷
⠀⠀⠀⠀⠀⢸⣿⣿⡇⣿⣿⣿⠀⠀⠀⠀⠀⣾⣿⡏
⠀⠀⠀⠀⠀⢸⣿⣿⡇⣿⣿⣿⠀⠀⠀⠀⢰⣿⣿
⠀⠀⠀⠀⠀⠘⢿⡿⠇⠻⣿⠟⠀⠀⠀⠀⢿⣿⠇

+rep

#include <iostream>
#include <fstream>
using namespace std;
ifstream in("graf_partial.in");
ofstream out("graf_partial.out");
int n,i,j,sum=0,x,y,a[101][101];
int main()
{
in>>n;
while(in>>x>>y)
{
if(!a[x][y])
sum++;
a[x][y]=1;
a[y][x]=1;
}
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
{
if(i%2==j%2&&a [j]==1)
{
a [j]=0;
a[j] =0;
sum--;
}
}
}
out<<sum;
return 0;
}

-rep toxic, cheater and also fat

codat

Signed by LegiTPlaYeR
Youtube: https://youtube.com/channel/UClb0u_SBChUSHBmW1Nj9ifA
Discord server: https://discord.gg/dpB3UaRW


+Rep
+Good player
+It's not toxic
+Friendly
+Good skills