Submission #337840

#	Time	Username	Problem	Language	Result	Execution time	Memory
337840		beksultan04	Odd-even (IZhO11_oddeven)	C++14	0 / 100	2059 ms	492 KiB

oddeven

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
#define OK puts("OK");
#define NO puts("NO");
#define YES puts("YES");
#define fr first
#define sc second
#define ret return
#define scan1(a) scanf("%lld",&a);
#define scan2(a,b) scanf("%lld %lld",&a, &b);
#define scan3(a,b,c) scanf("%lld %lld %lld",&a,&b,&c);
#define all(s) s.begin(),s.end()
#define allr(s) s.rbegin(),s.rend()
#define pb push_back
#define sz(v) (int)v.size()
#define endi puts("");
const int N = 1e6+12,INF=1e9+7;
main(){
    int n,i,c=1,cnt=0;
    scan1(n)
    for (i=1;i<=10000000000;++i){
        int x = i;
        if (cnt+x >=n){
            while (x--){
                cnt++;
                if (cnt == n){
                    cout <<c;
                    ret 0;
                }
                c+=2;
            }
            c-=2;
            c++;
        }
        else {
            cnt+=x;
            c+=x*2;
            c-=2;
            c++;

        }
    }

}

Compilation message (stderr)

oddeven.cpp:20:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   20 | main(){
      |      ^
oddeven.cpp: In function 'int main()':
oddeven.cpp:11:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   11 | #define scan1(a) scanf("%lld",&a);
      |                  ~~~~~^~~~~~~~~~~
oddeven.cpp:22:5: note: in expansion of macro 'scan1'
   22 |     scan1(n)
      |     ^~~~~

• Subtask 1: 0 / 100