This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
//#define int long long
#define fi first
#define se second
#define pb push_back
#define faster ios_base::sync_with_stdio(0); cin.tie(0);
using namespace std;
using ll = long long;
using ull = unsigned ll;
using ld = long double;
using pii = pair <int, int>;
using pil = pair <int, ll>;
using pli = pair <ll, int>;
using pll = pair <ll, ll>;
mt19937 Rand(chrono::steady_clock::now().time_since_epoch().count());
ll min(const ll &a, const ll &b){
return (a < b) ? a : b;
}
ll max(const ll &a, const ll &b){
return (a > b) ? a : b;
}
//const ll Mod = 1000000007;
//const ll Mod2 = 999999999989;
//only use when required
const int maxN = 1e5 + 1;
const ll inf = 0x3f3f3f3f3f3f3f3f;
int n, m;
ll d[maxN];
vector <pii> adj[maxN];
bool onstack[maxN];
int cnt[maxN];
bool SPFA(int s){
fill(d, d + n + 2, inf);
queue <int> Q;
Q.push(s);
onstack[s] = 1;
d[s] = 0;
while (!Q.empty()){
int u = Q.front(); Q.pop();
onstack[u] = 0;
for (auto &i: adj[u]){
if (d[u] + i.se < d[i.fi]){
d[i.fi] = d[u] + i.se;
cnt[i.fi] = cnt[u] + 1;
if (cnt[i.fi] == n + 1){
//negative cycle
return 0;
}
if (!onstack[i.fi]){
onstack[i.fi] = 1;
Q.push(i.fi);
}
}
}
}
return 1;
}
void Init(){
cin >> n >> m;
for (int i = 1; i <= m; ++i){
int l, r, k, val;
cin >> l >> r >> k >> val;
++l; ++r;
if (val){
adj[r].pb({l - 1, -(r - l + 1) + k - 1});
}
else adj[l - 1].pb({r, (r - l + 1) - k});
}
for (int i = 1; i <= n; ++i){
adj[i - 1].pb({i, 1});
adj[i].pb({i - 1, 0});
}
if (!SPFA(0)){
cout << -1; exit(0);
};
for (int i = 1; i <= n; ++i){
cout << d[i] - d[i - 1] << " ";
}
cout << "\n";
}
#define debu
#define taskname "test"
signed main(){
if (fopen(taskname".inp", "r")){
freopen(taskname".inp", "r", stdin);
#ifdef debug
freopen(taskname".out", "w", stdout);
#endif
}
faster;
ll tt = 1;
//cin >> tt;
while (tt--){
Init();
}
if (fopen("timeout.txt", "r")){
ofstream timeout("timeout.txt");
timeout << 1000 * double(clock()) / CLOCKS_PER_SEC;
#ifndef debug
cerr << "\nTime elapsed: " << 1000 * double(clock()) / CLOCKS_PER_SEC << "ms\n";
#endif
}
}
Compilation message (stderr)
restore.cpp: In function 'int main()':
restore.cpp:92:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
92 | freopen(taskname".inp", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
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