제출 #631654

#제출 시각아이디문제언어결과실행 시간메모리
631654smartmonkyXORanges (eJOI19_xoranges)C++14
0 / 100
1080 ms4524 KiB
#include <iostream> #include <algorithm> #include <vector> #include <math.h> #include <set> #include <map> #define ll long long #define ff first #define ss second #define pb push_back #define all(x) (x).begin(),(x).end() using namespace std; main(){ int n,q; cin >> n>>q; vector <int> v(n+1); for(int i=1;i<=n;i++) cin >>v[i]; while(q--){ int type,x,y; cin >>type >>x >>y; if(type==1) v[x]=y; else{ if(y==x) cout<<v[x] <<endl; else if(((y-x+2)/2)%2==0) cout<<(v[x]^v[y]) <<endl; else{ int res=0; for(int i=x+1;i<=y-1;i++) res^=v[i]; cout <<res <<endl; } } } }

컴파일 시 표준 에러 (stderr) 메시지

xoranges.cpp:16:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   16 | main(){
      | ^~~~
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