Submission #770927

#TimeUsernameProblemLanguageResultExecution timeMemory
770927horiiseunXylophone (JOI18_xylophone)C++17
100 / 100
92 ms440 KiB
#include <iostream> #include <vector> #include <tuple> #include <queue> #include <stack> #include <deque> #include <set> #include <map> #include <cmath> #include <random> #include <string> #include <cassert> #include <climits> #include <algorithm> #include <unordered_set> #include <unordered_map> #include "xylophone.h" using namespace std; #define ll long long #define f first #define s second void __print(int x) { cerr << x; } void __print(long x) { cerr << x; } void __print(long long x) { cerr << x; } void __print(unsigned x) { cerr << x; } void __print(unsigned long x) { cerr << x; } void __print(unsigned long long x) { cerr << x; } void __print(float x) { cerr << x; } void __print(double x) { cerr << x; } void __print(long double x) { cerr << x; } void __print(char x) { cerr << '\'' << x << '\''; } void __print(const char *x) { cerr << '\"' << x << '\"'; } void __print(const string &x) { cerr << '\"' << x << '\"'; } void __print(bool x) { cerr << (x ? "true" : "false"); } template<typename A> void __print(const A &x); template<typename A, typename B> void __print(const pair<A, B> &p); template<typename... A> void __print(const tuple<A...> &t); template<typename T> void __print(stack<T> s); template<typename T> void __print(queue<T> q); template<typename T, typename... U> void __print(priority_queue<T, U...> q); template<typename A> void __print(const A &x) { bool first = true; cerr << '{'; for (const auto &i : x) { cerr << (first ? "" : ","), __print(i); first = false; } cerr << '}'; } template<typename A, typename B> void __print(const pair<A, B> &p) { cerr << '('; __print(p.f); cerr << ','; __print(p.s); cerr << ')'; } template<typename... A> void __print(const tuple<A...> &t) { bool first = true; cerr << '('; apply([&first] (const auto &...args) { ((cerr << (first ? "" : ","), __print(args), first = false), ...); }, t); cerr << ')'; } template<typename T> void __print(stack<T> s) { vector<T> debugVector; while (!s.empty()) { T t = s.top(); debugVector.push_back(t); s.pop(); } reverse(debugVector.begin(), debugVector.end()); __print(debugVector); } template<typename T> void __print(queue<T> q) { vector<T> debugVector; while (!q.empty()) { T t = q.front(); debugVector.push_back(t); q.pop(); } __print(debugVector); } template<typename T, typename... U> void __print(priority_queue<T, U...> q) { vector<T> debugVector; while (!q.empty()) { T t = q.top(); debugVector.push_back(t); q.pop(); } __print(debugVector); } void _print() { cerr << "]\n"; } template <typename Head, typename... Tail> void _print(const Head &H, const Tail &...T) { __print(H); if (sizeof...(T)) cerr << ", "; _print(T...); } #ifdef DEBUG #define D(...) cerr << "Line: " << __LINE__ << " [" << #__VA_ARGS__ << "] = ["; _print(__VA_ARGS__) #else #define D(...) #endif void solve(int n) { vector<int> adj, tri; for (int i = 1; i < n; i++) { adj.push_back(query(i, i + 1)); } D(adj); for (int i = 1; i < n - 1; i++) { tri.push_back(query(i, i + 2)); } D(tri); vector<int> v; v.push_back(0); v.push_back(adj[0]); for (int i = 0; i < tri.size(); i++) { if (tri[i] == adj[i] + adj[i + 1]) { v.push_back(v.back() / adj[i] * adj[i + 1]); } else { v.push_back(-v.back() / adj[i] * adj[i + 1]); } } D(v); int mn = 2e9, mx = 0, pref = 0, mnpos = 0, mxpos = 0; for (int i = 0; i < v.size(); i++) { pref += v[i]; if (pref > mx) { mx = pref; mxpos = i; } if (pref < mn) { mn = pref; mnpos = i; } } D(mx); D(mn); if (mx + abs(mn) + 1 > n || mnpos >= mxpos) { for (int i = 0; i < v.size(); i++) { v[i] *= -1; } } D(v); mn = 0; for (int i = 1; i < v.size(); i++) { v[i] += v[i - 1]; mn = min(v[i], mn); } for (int i = 0; i < v.size(); i++) { answer(i + 1, v[i] + abs(mn) + 1); } return; }

Compilation message (stderr)

xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:129:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  129 |  for (int i = 0; i < tri.size(); i++) {
      |                  ~~^~~~~~~~~~~~
xylophone.cpp:139:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  139 |  for (int i = 0; i < v.size(); i++) {
      |                  ~~^~~~~~~~~~
xylophone.cpp:154:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  154 |   for (int i = 0; i < v.size(); i++) {
      |                   ~~^~~~~~~~~~
xylophone.cpp:160:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  160 |  for (int i = 1; i < v.size(); i++) {
      |                  ~~^~~~~~~~~~
xylophone.cpp:165:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  165 |  for (int i = 0; i < v.size(); i++) {
      |                  ~~^~~~~~~~~~
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