| # | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 863756 | 2023-10-20T20:42:20 Z | efedmrlr | Snowball (JOI21_ho_t2) | C++17 | 1 ms | 604 KB |
#include <bits/stdc++.h>
using namespace std;
#define n_l '\n'
#define dbg(...) cout << "[" << #__VA_ARGS__ << "]: "; cout << to_string(__VA_ARGS__) << endl
template <typename T, size_t N> int SIZE(const T (&t)[N]){ return N; } template<typename T> int SIZE(const T &t){ return t.size(); } string to_string(const string s, int x1=0, int x2=1e9){ return '"' + ((x1 < s.size()) ? s.substr(x1, x2-x1+1) : "") + '"'; } string to_string(const char* s) { return to_string((string) s); } string to_string(const bool b) { return (b ? "true" : "false"); } string to_string(const char c){ return string({c}); } template<size_t N> string to_string(const bitset<N> &b, int x1=0, int x2=1e9){ string t = ""; for(int __iii__ = min(x1,SIZE(b)), __jjj__ = min(x2, SIZE(b)-1); __iii__ <= __jjj__; ++__iii__){ t += b[__iii__] + '0'; } return '"' + t + '"'; } template <typename A, typename... C> string to_string(const A (&v), int x1=0, int x2=1e9, C... coords); int l_v_l_v_l = 0, t_a_b_s = 0; template <typename A, typename B> string to_string(const pair<A, B> &p) { l_v_l_v_l++; string res = "(" + to_string(p.first) + ", " + to_string(p.second) + ")"; l_v_l_v_l--; return res; } template <typename A, typename... C> string to_string(const A (&v), int x1, int x2, C... coords) { int rnk = rank<A>::value; string tab(t_a_b_s, ' '); string res = ""; bool first = true; if(l_v_l_v_l == 0) res += n_l; res += tab + "["; x1 = min(x1, SIZE(v)), x2 = min(x2, SIZE(v)); auto l = begin(v); advance(l, x1); auto r = l; advance(r, (x2-x1) + (x2 < SIZE(v))); for (auto e = l; e != r; e = next(e)) { if (!first) { res += ", "; } first = false; l_v_l_v_l++; if(e != l){ if(rnk > 1) { res += n_l; t_a_b_s = l_v_l_v_l; }; } else{ t_a_b_s = 0; } res += to_string(*e, coords...); l_v_l_v_l--; } res += "]"; if(l_v_l_v_l == 0) res += n_l; return res; } void dbgm(){;} template<typename Heads, typename... Tails> void dbgm(Heads H, Tails... T){ cout << to_string(H) << " | "; dbgm(T...); }
#define dbgm(...) cout << "[" << #__VA_ARGS__ << "]: "; dbgm(__VA_ARGS__); cout << endl
#define int long long int
#define MP make_pair
#define pb push_back
#define REP(i,n) for(int (i) = 0; (i) < (n); (i)++)
void fastio() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
}
const double EPS = 0.00001;
const int INF = 1e17+500;
const int N = 1e5+5;
const int M = 3e5+5;
const int ALPH = 26;
const int LGN = 25;
const int MOD = 1e9+7;
int n,m,q;
vector<int> x, w;
vector<array<int,2> > inter;
vector<int> lcost, rcost;
int is_same_sign(int a, int b) {
if(a == 0ll || b == 0ll) return 0;
if((a > 0ll) == (b > 0ll)) return 1;
return -1;
}
inline void solve() {
cin >> n >> q;
x.resize(n+1);
w.resize(q+1);
for(int i = 0; i<n; i++) cin>>x[i];
for(int i = 0; i<q; i++) cin>>w[i];
vector<int> tmp;
tmp.pb(w[0]);
for(int i = 1; i<q; i++) {
if(is_same_sign(tmp.back(), w[i]) > 0ll) {
tmp[tmp.size() - 1] += w[i];
}
else if(w[i] == 0ll) {}
else {
tmp.pb(w[i]);
}
}
swap(tmp, w);
q = w.size();
tmp.clear();
int cur = w[0];
tmp.pb(cur);
for(int i = 1; i<q; i++) {
cur += w[i];
if(is_same_sign(tmp.back(), cur) > 0ll) {
if(abs(tmp.back()) < abs(cur)) {
tmp.pop_back();
tmp.pb(cur);
}
}
else if(cur == 0ll) {
}
else {
if(!(tmp.size() > 1 && abs(tmp[tmp.size() - 2]) > abs(cur) ) ) {
tmp.pb(cur);
}
}
}
swap(tmp, w);
q = w.size();
if(n == 1) {
int ans = abs(w[q - 1]);
ans += (q > 1) ? abs(w[q - 2]) : 0ll;
cout<<ans<<"\n";
return;
}
inter.resize(n-1);
for(int i = 1; i<n; i++) {
inter[i-1] = {x[i] - x[i - 1], i - 1};
}
sort(inter.begin(), inter.end());
lcost.resize(n), rcost.resize(n);
if(w.back() < 0) {
lcost[0] = abs(w.back());
}
else if(w.size() > 1){
lcost[0] = abs(w[q - 2]);
}
else {
lcost[0] = 0ll;
}
if(w.back() > 0ll) {
rcost[n-1] = abs(w.back());
}
else if(w.size() > 1ll){
rcost[n-1] = abs(w[q - 2]);
}
else {
rcost[n-1] = 0ll;
}
cur = 2;
int lastl = 0ll;
int lastr = abs(w[0]);
for(int i = 0; i<n-1; i++) {
while(w.size() > cur && min(abs(w[cur]), inter[i][0] - abs(w[cur - 1]) ) > min(lastr, inter[i][0] - lastl) ) {
lastl = abs(w[cur - 1]);
lastr = abs(w[cur]);
cur+=2;
}
if(w[0] > 0){
rcost[inter[i][1]] = min(lastr, inter[i][0] - lastl);
}
else {
lcost[inter[i][1] + 1] = min(lastr, inter[i][0] - lastl);
}
}
cur = 1;
lastl = 0ll;
lastr = 0ll;
for(int i = 0; i<n-1; i++) {
while(w.size() > cur && min(abs(w[cur]), inter[i][0] - abs(w[cur - 1]) ) > min(lastr, inter[i][0] - lastl) ) {
lastl = abs(w[cur - 1]);
lastr = abs(w[cur]);
cur+=2;
}
if(w[0] < 0){
rcost[inter[i][1]] = min(lastr, inter[i][0] - lastl);
}
else {
lcost[inter[i][1] + 1] = min(lastr, inter[i][0] - lastl);
}
}
for(int i = 0; i < n; i++) {
cout<<lcost[i] + rcost[i]<<"\n";
}
}
signed main() {
fastio();
int test = 1;
//cin>>test;
while(test--) {
solve();
}
}
Compilation message
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 348 KB | Output is correct |
| 2 | Correct | 1 ms | 352 KB | Output is correct |
| 3 | Correct | 1 ms | 348 KB | Output is correct |
| 4 | Correct | 1 ms | 600 KB | Output is correct |
| 5 | Correct | 1 ms | 604 KB | Output is correct |
| 6 | Incorrect | 1 ms | 464 KB | Output isn't correct |
| 7 | Halted | 0 ms | 0 KB | - |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 348 KB | Output is correct |
| 2 | Correct | 1 ms | 352 KB | Output is correct |
| 3 | Correct | 1 ms | 348 KB | Output is correct |
| 4 | Correct | 1 ms | 600 KB | Output is correct |
| 5 | Correct | 1 ms | 604 KB | Output is correct |
| 6 | Incorrect | 1 ms | 464 KB | Output isn't correct |
| 7 | Halted | 0 ms | 0 KB | - |