Submission #2671306
Source Code Expand
#include<bits/stdc++.h> using namespace std; #define inf 1e9 #define ll long long #define ull unsigned long long #define M 1000000007 #define P pair<int,int> #define PLL pair<ll,ll> #define FOR(i,m,n) for(int i=m;i<n;i++) #define RFOR(i,m,n) for(int i=m;i>=n;i--) #define rep(i,n) FOR(i,0,n) #define rrep(i,n) RFOR(i,n,0) #define all(a) a.begin(),a.end() const int vx[4] = {0,1,0,-1}; const int vy[4] = {1,0,-1,0}; #define PI 3.14159265 int n; int a[1000000]; int x=0; int main(){ cin>>n; rep(i,n){ cin>>a[i]; x = x^a[i]; } int res=0; for (int k=30; k>=1; k--) { if (x == 0) break; if (!(x>>(k-1) & 1)) continue; for (size_t i=0; i<N; ++i) { if ((a[i]^(a[i]-1)) == (1<<k)-1) { x ^= (1<<k)-1; ++res; a[i] = 0; break; } } } if(x!=0){ cout<<-1<<endl; } else{ cout<<ans<<endl; } return 0; }
Submission Info
Submission Time | |
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Task | C - Cheating Nim |
User | mint |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 946 Byte |
Status | CE |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:34:24: error: ‘N’ was not declared in this scope for (size_t i=0; i<N; ++i) { ^ ./Main.cpp:49:11: error: ‘ans’ was not declared in this scope cout<<ans<<endl; ^