Submission #926037

#	Time	Username	Problem	Language	Result	Execution time	Memory
926037		Zakir060	XOR Sum (info1cup17_xorsum)	C++17	0 / 100	67 ms	131072 KiB

xorsum

#include <bits/stdc++.h>
using namespace std;
#define int long long
void xakir() { /*
int n,m,res=0;
cin>>n>>m;
if(n>=m) {
res=0;
for(int i=2;i<=m;i++) {
res+=(n%i);
}
}
else {
res=(m-n)*n;
for(int i=2;i<=n;i++) {
res+=(n%i);
}
}
cout<<res;
for(int i=1;i<=m;i++) {
cout<<i<<" "<<(n%i)<<endl;
} */
int n;
cin>>n;
vector<int>v(n+1);
for(int i=1;i<=n;i++) {
cin>>v[i];
}
vector<int>pre(n*n+n);
for(int i=1;i<=n;i++) {
for(int j=i;j<=n;j++) {
pre.push_back(v[i]+v[j]);
}
}
int res=0;
for(int i=0;i<pre.size();i++) {
res^=(pre[i]);
}
cout<<res;
}
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
cout.setf( ios::fixed);
cout.precision(4);
system("color 0A");
int t=1;
//cin>>t;
while(t--) {
xakir();
}
/**
    ░█████╗░░░░░░░░░░░░░░░
    ██╔══██╗░░██╗░░░░██╗░░
    ██║░░╚═╝██████╗██████╗
    ██║░░██╗╚═██╔═╝╚═██╔═╝
    ╚█████╔╝░░╚═╝░░░░╚═╝░░
    ░╚════╝░░░░░░░░░░░░░░░
**/

 }

Compilation message (stderr)

xorsum.cpp: In function 'void xakir()':
xorsum.cpp:36:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 | for(int i=0;i<pre.size();i++) {
      |             ~^~~~~~~~~~~
xorsum.cpp: In function 'int main()':
xorsum.cpp:47:7: warning: ignoring return value of 'int system(const char*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 | system("color 0A");
      | ~~~~~~^~~~~~~~~~~~

• Subtask 1: 0 / 7
• Subtask 2: 0 / 11
• Subtask 3: 0 / 21
• Subtask 4: 0 / 38
• Subtask 5: 0 / 23