제출 #365490

#제출 시각아이디문제언어결과실행 시간메모리
365490tfgpopa (BOI18_popa)C++17
컴파일 에러
0 ms0 KiB
#include <iostream> #include <vector> #include <chrono> #include <random> #include <cassert> #include "popa.h" #include <stack> std::mt19937 rng((int) std::chrono::steady_clock::now().time_since_epoch().count()); // query(a, b, c, d) gcd[a, b] == gcd[c, d] const int ms = 1010; int liml[ms], limr[ms]; int solve(int l, int r, int* Left, int* Right) { if(l >= r) { return -1; } for(int i = l; i < r; i++) { if(liml[i] <= l && r <= limr[i]) { Left[i] = solve(l, i, Left, Right); Right[i] = solve(i+1, r, Left, Right); return i; } } assert(0); } int solve(int n, int *l, int *r) { for(int i = 0; i < n; i++) { l[i] = r[i] = -1; } std::vector<int> st; for(int i = 0; i < n; i++) { while(!st.empty() && query(st.back(), st.back(), st.back(), i) != 0) { // [st.back(), i] isn't good for st.back limr[st.back()] = i; st.pop_back(); } liml[i] = st.empty() ? 0 : st.back() + 1; } assert(!st.empty()); for(auto val : st) { limr[val] = n; } solve(0, n, l, r); } int main() { std::ios_base::sync_with_stdio(false); std::cin.tie(NULL); }

컴파일 시 표준 에러 (stderr) 메시지

popa.cpp: In function 'int solve(int, int*, int*)':
popa.cpp:35:19: warning: control reaches end of non-void function [-Wreturn-type]
   35 |  std::vector<int> st;
      |                   ^~
/tmp/ccjefib6.o: In function `main':
popa.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccLYRmwB.o:grader.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status