제출 #399745

#제출 시각아이디문제언어결과실행 시간메모리
399745peuch도시들 (IOI15_towns)C++17
컴파일 에러
0 ms0 KiB
#include "towns.h" #include <assert.h> #include <stdio.h> #include <stdlib.h> #include "graderlib.c" #include "towns.h" #include<bits/stdc++.h> using namespace std; const int MAXN = 310; int dist[MAXN][MAXN]; int marc[MAXN][MAXN]; int getD(int i, int j){ if(marc[i][j]) return dist[i][j]; marc[i][j] = marc[j][i] = 1; if(i == j) return dist[i][j] = dist[j][i] = 0; return dist[i][j] = dist[j][i] = getDistance(i, j); } int hubDistance(int N, int sub) { int p1 = 0, p2 = 0; int maxi = 0; memset(dist, 0, sizeof(dist)); memset(marc, 0, sizeof(marc)); for(int i = 0; i < N; i++){ int aux = getD(0, i); if(aux > maxi) p1 = i, maxi = aux; } maxi = 0; for(int i = 0; i < N; i++) if(getD(p1, i) > maxi) maxi = getD(p1, i), p2 = i; int diam = getD(p1, p2); int ans = 1e8; for(int i = 0; i < N; i++){ int x = (diam + getD(p1, i) - getD(p2, i)) / 2; ans = min(ans, max(x, diam - x)); } if(sub <= 2) return ans; int lSize = 0, rSize = 0; vector<int> lMid, rMid; for(int i = 0; i < N; i++){ int x = (diam + getD(p1, i) - getD(p2, i)) / 2; if(x < min(ans, diam - ans)) lSize++; else if(x == min(ans, diam - ans)) lMid.push_back(i); else if(x == max(ans, diam - ans)) rMid.push_back(i); else rSize++; } if(sub <= 4){ if(lSize > N / 2 || rSize > N / 2 || lMid.size() > N / 2 || rMid.size() > N / 2) return -ans; return ans; } if(lSize > N / 2 || rSize > N / 2) return -ans; else if(lMid.size() > N / 2){ stack<int> pilha; for(int i = 0; i < lMid.size(); i++){ if(pilha.empty()) pilha.push(lMid[i]); else{ int aux = getD(p1, pilha.top()); int x = (aux + getD(p1, lMid[i]) - getD(pilha.top(), lMid[i])) / 2; if(x == min(ans, diam - ans)) pilha.pop(); else pilha.push(lMid[i]); } } if(pilha.empty()) return ans; int k = pilha.top(); int cnt = 0; for(int i = 0; i < lMid.size(); i++){ int aux = getD(p1, k); int x = (aux + getD(p1, lMid[i]) - getD(k, lMid[i])) / 2; if(x > min(ans, diam - ans)) cnt++; } if(cnt > N / 2) return -ans; return ans; } else if(rMid.size() > N / 2){ stack<int> pilha; for(int i = 0; i < rMid.size(); i++){ if(pilha.empty()) pilha.push(rMid[i]); else{ int aux = getD(p1, pilha.top()); int x = (aux + getD(p1, rMid[i]) - getD(pilha.top(), rMid[i])) / 2; if(x == max(ans, diam - ans)) pilha.pop(); else pilha.push(rMid[i]); } } if(pilha.empty()) return ans; int k = pilha.top(); int cnt = 0; for(int i = 0; i < rMid.size(); i++){ int aux = getD(p1, k); int x = (aux + getD(p1, rMid[i]) - getD(k, rMid[i])) / 2; if(x > max(ans, diam - ans)) cnt++; } if(cnt > N / 2) return -ans; return ans; } return ans; } int main() { int ncase, R, N; int subtask; int ret; scanf("%d %d", &subtask, &ncase); for (int i = 0; i < ncase; i++) { scanf("%d", &N); _ini_query(N,subtask); R=hubDistance(N,subtask); printf("%d\n",R); } return 0; }

컴파일 시 표준 에러 (stderr) 메시지

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:56:52: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   56 |   if(lSize > N / 2 || rSize > N / 2 || lMid.size() > N / 2 || rMid.size() > N / 2) return -ans;
      |                                        ~~~~~~~~~~~~^~~~~~~
towns.cpp:56:75: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   56 |   if(lSize > N / 2 || rSize > N / 2 || lMid.size() > N / 2 || rMid.size() > N / 2) return -ans;
      |                                                               ~~~~~~~~~~~~^~~~~~~
towns.cpp:61:22: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   61 |  else if(lMid.size() > N / 2){
      |          ~~~~~~~~~~~~^~~~~~~
towns.cpp:63:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |   for(int i = 0; i < lMid.size(); i++){
      |                  ~~^~~~~~~~~~~~~
towns.cpp:75:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   75 |   for(int i = 0; i < lMid.size(); i++){
      |                  ~~^~~~~~~~~~~~~
towns.cpp:83:22: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   83 |  else if(rMid.size() > N / 2){
      |          ~~~~~~~~~~~~^~~~~~~
towns.cpp:85:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   85 |   for(int i = 0; i < rMid.size(); i++){
      |                  ~~^~~~~~~~~~~~~
towns.cpp:97:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   97 |   for(int i = 0; i < rMid.size(); i++){
      |                  ~~^~~~~~~~~~~~~
towns.cpp: In function 'int main()':
towns.cpp:113:9: warning: unused variable 'ret' [-Wunused-variable]
  113 |     int ret;
      |         ^~~
towns.cpp:114:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  114 |     scanf("%d %d", &subtask, &ncase);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
towns.cpp:116:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  116 |         scanf("%d", &N);
      |         ~~~~~^~~~~~~~~~
/tmp/ccjj8rpX.o: In function `_ini_query(int, int)':
grader.c:(.text+0x0): multiple definition of `_ini_query(int, int)'
/tmp/ccXMrMsk.o:towns.cpp:(.text+0x0): first defined here
/tmp/ccjj8rpX.o: In function `getDistance(int, int)':
grader.c:(.text+0x110): multiple definition of `getDistance(int, int)'
/tmp/ccXMrMsk.o:towns.cpp:(.text+0x110): first defined here
/tmp/ccjj8rpX.o: In function `main':
grader.c:(.text.startup+0x0): multiple definition of `main'
/tmp/ccXMrMsk.o:towns.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status