제출 #330666

#제출 시각아이디문제언어결과실행 시간메모리
330666fammoJakarta Skyscrapers (APIO15_skyscraper)C++11
0 / 100
1089 ms1280 KiB
#include <bits/stdc++.h> using namespace std; #define pb push_back const int MAXN = 30000 + 7; int n, m, p[MAXN], b[MAXN], dis[MAXN]; vector<int>adj[MAXN]; inline void dij(int root){ set<pair<int, int>>s; fill(dis, dis + MAXN, INT_MAX/2); dis[root] = 0; s.insert({0, root}); for(int i = 0; i < m; i ++){ auto x = *s.begin(); int v = x.second, d = x.first; s.erase(s.begin()); for(auto p : adj[v]){ int cnt = 1; for(int u = v + p; u < n; u += p){ if(d + cnt < dis[u]){ s.erase({dis[u], u}); dis[u] = d + cnt; s.insert({dis[u], u}); } cnt ++; } cnt = 1; for(int u = v - p; u > -1; u -= p){ if(d + cnt < dis[u]){ s.erase({dis[u], u}); dis[u] = d + cnt; s.insert({dis[u], u}); } cnt ++; } } } return; } int main(){ //ios_base::sync_with_stdio(0), cin.tie(nullptr), cout.tie(nullptr); //cin >> n >> m; scanf("%d", &n); scanf("%d", &m); for(int i = 0; i < m; i ++){ //cin >> b[i] >> p[i]; scanf("%d", b + i); scanf("%d", p + i); adj[b[i]].pb(p[i]); } dij(0); printf("%d\n", (dis[1] >= INT_MAX/2? -1ll : dis[1])); return 0; }

컴파일 시 표준 에러 (stderr) 메시지

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:52:14: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
   52 |     printf("%d\n", (dis[1] >= INT_MAX/2? -1ll : dis[1]));
      |             ~^     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |              |                         |
      |              int                       long long int
      |             %lld
skyscraper.cpp:43:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   43 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
skyscraper.cpp:44:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   44 |     scanf("%d", &m);
      |     ~~~~~^~~~~~~~~~
skyscraper.cpp:47:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   47 |         scanf("%d", b + i);
      |         ~~~~~^~~~~~~~~~~~~
skyscraper.cpp:48:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   48 |         scanf("%d", p + i);
      |         ~~~~~^~~~~~~~~~~~~
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