이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#define vi vector<int>
#define ve vector
#define ll long long
#define vl vector<ll>
#define vll vector<pair<ll,ll>>
#define onbit __builtin_popcount
#define ii pair<int,int>
#define vvi vector<vi>
#define vii vector<ii>
#define gii greater<ii>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF 1e18
#define eps 1e-7
#define eps1 1e-2
#define optimise ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define MAX_A 1e5+5
using namespace std;
using namespace __gnu_pbds;
template <class T>
using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
const ll MOD = 1e9+7;
const int nax = 2e5+5;
const int MAX_VAL = 1e6;
double PI=3.14159265359;
int arx[8]={1,1,0,-1,-1,-1, 0, 1};
int ary[8]={0,1,1, 1, 0,-1,-1,-1};
void setIO(string s) {
freopen((s + ".in").c_str(), "r", stdin);
freopen((s + ".out").c_str(), "w", stdout);
}
long long dp[100][100];
int main(){
optimise;
/*#ifndef ONLINE_JUDGE
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif*/
//setIO("redistricting");
int n,m,k;
cin>>n>>m>>k;
pair<int,int> tab[n][k];
for (int i = 0; i < n; ++i)
{
for (int j = 0; j < k; ++j)
{
cin>>tab[i][j].fi>>tab[i][j].se;
}
}
for (int i = 0; i < n; ++i)
{
for (int j = 0; j < n; ++j)
{
dp[i][j]=1e15;
}
}
for (int i = 0; i < m; ++i)
{
int x,y,z;
cin>>x>>y>>z;
x--;y--;
dp[x][y]=z;
}
for (int k = 0; k < n; ++k)
{
for (int i = 0; i < n; ++i)
{
for (int j = 0; j < n; ++j)
{
dp[i][j]=min(dp[i][j],dp[i][k]+dp[k][j]);
}
}
}
long long ans=0;
for (int i = 1; i < n; ++i)
{
for (int j = 0; j < k; ++j)
{
if (tab[i][j].se==-1||dp[0][i]>1e10||dp[i][0]>1e10) continue;
//cout <<tab[i][j].se-tab[0][j].fi<<endl;
ans=max(ans,(tab[i][j].se-tab[0][j].fi)/(dp[0][i]+dp[i][0]));
}
}cout <<ans<<endl;
}
컴파일 시 표준 에러 (stderr) 메시지
merchant.cpp: In function 'void setIO(std::string)':
merchant.cpp:33:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
33 | freopen((s + ".in").c_str(), "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
merchant.cpp:34:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
34 | freopen((s + ".out").c_str(), "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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