제출 #798018

#제출 시각아이디문제언어결과실행 시간메모리
798018Sam_a17popa (BOI18_popa)C++17
컴파일 에러
0 ms0 KiB
#define _CRT_SECURE_NO_WARNINGS #include <bits/stdc++.h> // #include <atcoder/all> #include <cstdio> using namespace std; #ifndef ONLINE_JUDGE #define dbg(x) cerr << #x <<" "; print(x); cerr << endl; #else #define dbg(x) #endif #define sz(x) (int((x).size())) #define len(x) (int)x.length() #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() #define clr(x) (x).clear() #define blt(x) __builtin_popcount(x) #define uniq(x) x.resize(unique(all(x)) - x.begin()); #define pb push_back #define popf pop_front #define popb pop_back #define ld long double #define ll long long void print(long long t) {cerr << t;} void print(int t) {cerr << t;} void print(string t) {cerr << t;} void print(char t) {cerr << t;} void print(double t) {cerr << t;} void print(unsigned long long t) {cerr << t;} void print(long double t) {cerr << t;} template <class T, class V> void print(pair <T, V> p); template <class T> void print(vector <T> v); template <class T> void print(set <T> v); template <class T, class V> void print(map <T, V> v); template <class T> void print(multiset <T> v); template <class T> void print(T v[],T n) {cerr << "["; for(int i = 0; i < n; i++) {cerr << v[i] << " ";} cerr << "]";} template <class T, class V> void print(pair <T, V> p) {cerr << "{"; print(p.first); cerr << ","; print(p.second); cerr << "}";} template <class T> void print(vector <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";} template <class T> void print(deque <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";} template <class T> void print(set <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";} template <class T> void print(multiset <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";} template <class T, class V> void print(map <T, V> v) {cerr << "[ "; for (auto i : v) {print(i); cerr << " ";} cerr << "]";} #include <ext/pb_ds/assoc_container.hpp> using namespace __gnu_pbds; #define nl '\n' // for random generations mt19937 myrand(chrono::steady_clock::now().time_since_epoch().count()); // mt19937 myrand(131); // for grid problems int dx[8] = {1,0,-1,0,1,-1,1,-1}; int dy[8] = {0,1,0,-1,1,1,-1,-1}; char ch[4] = {'v', '>', '^', '<'}; long long ka() { long long x = 0; bool z = false; while (1) { char y = getchar(); if (y == '-') z = true; else if ('0' <= y && y <= '9') x = x * 10 + y - '0'; else { if (z) x *= -1; return x; } } } // lowest / (1 << 17) >= 1e5 / (1 << 18) >= 2e5 / (1 << 21) >= 1e6 void fastIO() { ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr); } // file in/out void setIO(string str = "") { fastIO(); if (str != "") { freopen((str + ".in").c_str(), "r", stdin); freopen((str + ".out").c_str(), "w", stdout); } else if(str == "input") { freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); } } // Indexed Set template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>; int query(int a, int b, int c, int d); const int N = 1005; int get(int l, int r, int* Left, int* Right) { if(l > r) { return -1; } if(r - l == 1) { Left[l] = -1; Right[l] = -1; return; } int ina = l, inb = r, ans = -1; while(ina <= inb) { int mid = (ina + inb) / 2; if(query(l, mid, l, r)) { ans = mid; inb = mid - 1; } else { ina = mid + 1; } } Left[ans] = get(l, ans - 1, Left, Right); Right[ans] = get(ans + 1, r, Left, Right); return 0; } int solve(int N, int* Left, int* Right) { int rt = get(0, N - 1, Left, Right); return rt; } // int main() { // setIO(); // auto solve = [&](int test_case)-> void { // while(test_case--) { // solve_(); // } // }; // int test_cases = 1; // // cin >> test_cases; // solve(test_cases); // return 0; // }

컴파일 시 표준 에러 (stderr) 메시지

popa.cpp: In function 'int get(int, int, int*, int*)':
popa.cpp:113:5: error: return-statement with no value, in function returning 'int' [-fpermissive]
  113 |     return;
      |     ^~~~~~
popa.cpp: In function 'void setIO(std::string)':
popa.cpp:90:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   90 |     freopen((str + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
popa.cpp:91:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   91 |     freopen((str + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
popa.cpp:93:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   93 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
popa.cpp:94:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   94 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~