結果
| 問題 |
No.1008 Bench Craftsman
|
| コンテスト | |
| ユーザー |
tonegawa
|
| 提出日時 | 2020-08-13 12:05:17 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,488 bytes |
| コンパイル時間 | 1,646 ms |
| コンパイル使用メモリ | 128,728 KB |
| 最終ジャッジ日時 | 2025-01-12 21:47:43 |
|
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 12 WA * 7 TLE * 8 |
コンパイルメッセージ
main.cpp: In function ‘void get(std::vector<long long int>&)’:
main.cpp:25:38: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
25 | void get(vll &a){re(i,a.size()) scanf("%lld",&a[i]);}
| ~~~~~^~~~~~~~~~~~~~
main.cpp: In function ‘void get(std::vector<std::vector<long long int> >&)’:
main.cpp:26:56: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
26 | void get(vvl &a){re(i,a.size()) re(j,a[0].size()) scanf("%lld",&a[i][j]);}
| ~~~~~^~~~~~~~~~~~~~~~~
main.cpp: In function ‘int main(int, const char**)’:
main.cpp:37:18: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
37 | ll x, w;scanf("%lld %lld", &x,&w);
| ~~~~~^~~~~~~~~~~~~~~~~~~~
ソースコード
#include <iostream>
#include <string>
#include <vector>
#include <queue>
#include <deque>
#include <algorithm>
#include <set>
#include <map>
#include <bitset>
#include <cmath>
#include <functional>
#include <iomanip>
#define vll vector<ll>
#define vvvl vector<vvl>
#define vvl vector<vector<ll>>
#define VV(a, b, c, d) vector<vector<d>>(a, vector<d>(b, c))
#define VVV(a, b, c, d) vector<vvl>(a, vvl(b, vll (c, d)));
#define re(c, b) for(ll c=0;c<b;c++)
#define rep(a,b,c) for(ll a=b;a<c;a++)
#define all(obj) (obj).begin(), (obj).end()
typedef long long int ll;
typedef long double ld;
using namespace std;
void get(vll &a){re(i,a.size()) scanf("%lld",&a[i]);}
void get(vvl &a){re(i,a.size()) re(j,a[0].size()) scanf("%lld",&a[i][j]);}
void print(vll &a){re(i,a.size()) cout<<a[i]<<(i==a.size()-1?"\n":" ");}
void print(vvl &a){re(i,a.size()) re(j,a[0].size())cout<<a[i][j]<<(j==a[0].size()-1?"\n":" ");}
int main(int argc, char const *argv[]) {
ll n, m;std::cin >> n >> m;
vll a(n);get(a);
//区画 人数 和
vvl d = VV(n, 0, 0, ll);
re(i, m){
ll x, w;scanf("%lld %lld", &x,&w);
d[x-1].push_back(w);
}
ll al = 0;
re(i, n){
ll s = 0;
for(auto e:d[i]) s += e;
al += s;
if(s>=a[i]){
std::cout << -1 << '\n';
return 0;
}
}
bool g = true;
re(i, n) if(a[i]<=al) g = false;
if(g){
std::cout << 0 << '\n';
return 0;
}
//可能
ll l = 0, r = 1000000000;
while(r-l>1){
ll mid = (l+r)/2;
vvl q;//idx, クエリ , -1:= dowbn, -2消す
//各要素について、影響を与える距離がわかる
for(int i=0;i<n;i++){
for(auto e:d[i]){
ll x = e/mid;
ll st;
if(i<x) st = e - mid*i;
else st = e%mid;
q.push_back({max(i-x, 0LL), st, 0});
q.push_back({i, -1, 0});
q.push_back({i+x, -2, st});
}
}
sort(all(q));
ll idx = 0, s = 0, up = 0, down = 0;
vll cost(n, 0);
for(int i=0;i<n;i++){
ll sa = mid*(up - down);
s += sa;
ll sub = 0;
while(idx<q.size()&&q[idx][0]==i){
if(q[idx][1]>=0) s += q[idx][1], up++;
if(q[idx][1]==-1) up--, down++;
if(q[idx][1]==-2) down--, sub += q[idx][2];
idx++;
}
cost[i] = s;
s -= sub;
}
bool f = true;
for(int i=0;i<n;i++){
if(cost[i]>=a[i]){
f = false;
break;
}
}
if(f) r = mid;
else l = mid;
}//l no r ok
std::cout << r << '\n';
return 0;
}
tonegawa