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>
using namespace std;
#define INIT ios_base :: sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define mp make_pair
#define pb push_back
#define ft first
#define sc second
#define ll long long
#define pii pair<int, int>
#define count_bits __builtin_popcount
#define int ll
int t, n, m, k, a[300010], q, l, r;
int b[101][1001], s[101][1001];
int c[101][101];
int d[101][101];
int p[101][101];
vector<pii> g[101];
void dijkstra(int s){
multiset<pii> ms;
ms.insert({0, s});
d[s][s]=0;
bool v[101]; memset(v, 0, sizeof(v));
while(!ms.empty()){
int nod=(ms.begin())->sc; ms.erase(ms.begin());
v[nod]=true;
for(pii pr:g[nod]){
int u=pr.ft, c=pr.sc;
if(v[u]){continue;}
auto it=ms.find({d[s][u], u});
if(it==ms.end()){
d[s][u]=d[s][nod]+c;
ms.insert({d[s][u], u});
}
else{
if(d[s][u]>(d[s][nod]+c) ){
ms.erase(it);
d[s][u]=d[s][nod]+c;
ms.insert({d[s][u], u});
}
}
}
}
}
void build(int r){
for(int i=1; i<=n; i++){
g[i].clear();
}
for(int i=1; i<=n; i++){
for(int j=1; j<=n;j++){
if(d[i][j]>0){
g[i].pb({j, r*d[i][j]-p[i][j]});
}
}
}
}
vector<int> g2[101];
bool v2[101];
bool dfs(int s){
v2[s]=true;
bool b=false;
for(int u:g2[s]){
if(v2[u]){ v2[s]=false; return true;}
b=(b||dfs(u));
}
v2[s]=false;
return b;
}
bool BellmanFord(int r){
build(r);
int d[101]; memset(d, 0, sizeof(d));
bool v[101]; memset(v, 0, sizeof(v));
v[1]=true;
for(int i=1; i<n; i++){
for(int j=1; j<=n; j++){
if(!v[j]){continue;}
for(auto pr:g[j]){
int u=pr.ft, c=pr.sc;
if(v[u]){
d[u]=min(d[u], d[j]+c);
}
else{
d[u]=d[j]+c;
v[u]=true;
}
}
}
}
for(int i=1; i<=n; i++){
v2[i]=false;
g2[i].clear();
}
bool exists=false;
for(int j=1; j<=n; j++){
if(!v[j]){continue;}
for(auto pr:g[j]){
int u=pr.ft, c=pr.sc;
if(v[u]){
if( (d[j]+c)<d[u] ){
exists=true;
}
if( (d[j]+c)==d[u] ){
g2[j].pb(u);
}
d[u]=min(d[u], d[j]+c);
}
else{
d[u]=d[j]+c;
v[u]=true;
}
}
}
for(int i=1; i<=n; i++){
if(!v2[i]){exists=exists||dfs(i);}
}
for(int i=1; i<=n; i++){
v2[i]=false;
g2[i].clear();
}
return exists;
}
int32_t main(){
INIT
cin>>n>>m>>k;
for(int i=1; i<=n; i++){
for(int j=1; j<=k; j++){
cin>>b[i][j]>>s[i][j];
}
}
for(int i=1; i<=m; i++){
int u, v, C;
cin>>u>>v>>C;
c[u][v]=C;
g[u].pb({v, C});
}
for(int i=1;i<=n; i++){
dijkstra(i);
}
for(int i=1; i<=n; i++){
for(int j=1; j<=n; j++){
//p[i][j]=-1;
if(d[i][j]>0){
for(int l=1; l<=k; l++){
if( (s[j][l]>=0) && (b[i][l]>=0) ){
p[i][j]=max(p[i][j], s[j][l]-b[i][l]);
}
}
}
}
}
int l=1, r=1000000001, m=(l+r)>>1ll;
while(l<r){
m=(l+r)>>1ll;
if(BellmanFord(m)){
l=m+1;
}
else{
r=m;
}
m=(l+r)>>1ll;
}
cout<<(m-1);
//cout<<BellmanFord(m)<<"\n";
return 0;
}
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