제출 #421379

#제출 시각아이디문제언어결과실행 시간메모리
421379Andyvanh1Data Transfer (IOI19_transfer)C++14
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> #include "transfer.h" using namespace std; #define vt vector #define INF 0x3f3f3f3f #define pb push_back #define all(x) (x).begin(),(x).end() #define rep(i,x) for(int (i) = 0;(i) < (x); (i)++) #define MOD 1000000007 typedef vt<int> vi; typedef long long ll; typedef long double ld; typedef pair<int,int> pii; vi get_attachment(vi source){ vi ans(7); int x = 0; int ct = 0; for(int i = 1; i <= 63; i++){ x^=i*(source[i-1]); } for(int i = 0; i < 6; i++){ ans[i] = ((1<<i)&x ? 1 : 0); if(ans[i])ct++; } ans[6] = ct&1; return ans; } vi retrieve_data(vi data){ vi ans1(63); vi ans2(6); int ans3; for(int i = 0; i < 63; i++){ ans1[i] = data[i]; } for(int i = 63; i < 69; i++){ ans2[i-63] = data[i]; } ans3 = data[69]; int x = 0; int y = 0; int z = 0; int ct = 0; for(int i = 1; i <= 63; i++){ x^=i*(ans1[i-1]); } for(int i = 0; i < 6; i++){ y+=(1<<i)*ans2[i]; } if(x==y)return ans1; if(y&1!=ans3){ return ans1; }else{ ans1[x^y-1]^=1; return ans1; } }

컴파일 시 표준 에러 (stderr) 메시지

transfer.cpp: In function 'vi retrieve_data(vi)':
transfer.cpp:61:11: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   61 |     if(y&1!=ans3){
      |          ~^~~~~~
transfer.cpp:64:17: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
   64 |         ans1[x^y-1]^=1;
      |                ~^~
transfer.cpp:49:9: warning: unused variable 'z' [-Wunused-variable]
   49 |     int z = 0;
      |         ^
transfer.cpp:50:9: warning: unused variable 'ct' [-Wunused-variable]
   50 |     int ct = 0;
      |         ^~
/usr/bin/ld: /tmp/cc5bGVBT.o: in function `pass2()':
grader.cpp:(.text+0x1711): undefined reference to `retrieve(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status