結果
問題 | No.818 Dinner time |
ユーザー | Enjapma_kyopro |
提出日時 | 2019-04-13 23:08:22 |
言語 | C++11 (gcc 11.4.0) |
結果 |
RE
|
実行時間 | - |
コード長 | 3,354 bytes |
コンパイル時間 | 869 ms |
コンパイル使用メモリ | 99,088 KB |
実行使用メモリ | 35,708 KB |
最終ジャッジ日時 | 2024-09-22 08:40:10 |
合計ジャッジ時間 | 9,459 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | RE | - |
testcase_01 | RE | - |
testcase_02 | RE | - |
testcase_03 | AC | 13 ms
35,708 KB |
testcase_04 | RE | - |
testcase_05 | RE | - |
testcase_06 | RE | - |
testcase_07 | RE | - |
testcase_08 | RE | - |
testcase_09 | RE | - |
testcase_10 | RE | - |
testcase_11 | RE | - |
testcase_12 | RE | - |
testcase_13 | RE | - |
testcase_14 | RE | - |
testcase_15 | RE | - |
testcase_16 | RE | - |
testcase_17 | RE | - |
testcase_18 | RE | - |
testcase_19 | RE | - |
testcase_20 | RE | - |
testcase_21 | RE | - |
testcase_22 | RE | - |
testcase_23 | RE | - |
testcase_24 | RE | - |
testcase_25 | RE | - |
testcase_26 | RE | - |
testcase_27 | RE | - |
testcase_28 | RE | - |
testcase_29 | RE | - |
testcase_30 | RE | - |
testcase_31 | RE | - |
testcase_32 | RE | - |
ソースコード
#include <iostream> #include <cassert> #include <climits> #include <bitset> #include <stack> #include <queue> #include <iomanip> #include <limits> #include <string> #include <cmath> #include <set> #include <map> #include <math.h> #include <algorithm> #include <vector> #include <string.h> #include <tuple> #include <time.h> #include <random> using namespace std; typedef long long ll; typedef pair<ll,ll> P; long long int INF = 3e18; double Pi = 3.1415926535897932384626; vector<ll> G[500005]; vector<P> tree[500010]; priority_queue <ll> pql; priority_queue <P> pqp; //big priority queue priority_queue <ll,vector<ll>,greater<ll> > pqls; priority_queue <P,vector<P>,greater<P> > pqps; //small priority queue //top pop int dx[8]={1,0,-1,0,1,1,-1,-1}; int dy[8]={0,1,0,-1,1,-1,-1,1}; char dir[] = "DRUL"; //ll bit[500005]; //↓,→,↑,← #define p(x) cout<<x<<endl; #define el cout<<endl; #define pe(x) cout<<(x)<<" "; #define ps(x) cout<<fixed<<setprecision(25)<<x<<endl; #define pu(x) cout<<(x); #define pd(x) cerr<<"//"<<(x)<<endl; #define re(i,n) for(i=0;i<n;i++); #define pb push_back #define lb lower_bound #define ub upper_bound #define deba(x) cout<< #x << " = " << x <<endl ll mod = 1000000007; ll rui(ll number1,ll number2){ if(number2 == 0){ return 1; }else{ ll number3 = rui(number1,number2 / 2); number3 *= number3; number3 %= mod; if(number2%2==1){ number3 *= number1; number3 %= mod; } return number3; } } ll gcd(ll number1,ll number2){ if(number1 > number2){ swap(number1,number2); } if(number1 == 0 || number1 == number2){ return number2; }else{ return gcd(number2 % number1,number1); } } void YES(bool condition){ if(condition){ p("YES"); }else{ p("NO"); } return; } void Yes(bool condition){ if(condition){ p("Yes"); }else{ p("No"); } return; } ll n,m,num,sum,ans,a,b,c,d,e,g,h,w,i,j,k,q,l,r; ll x[500005],y[500005],z[500005]; ll dp[500005][6],sc[500005][6]; //bool check[5005]; char s[500005],t[500005]; bool flag,dame; ll fact[400005]; ll rfact[400005]; void c3_init(){ fact[0] = rfact[0] = 1; for(ll i=1; i<400000; i++){ fact[i] = (fact[i-1]*i) % mod; rfact[i] = rui(fact[i],mod - 2); } } ll c3(ll n,ll r){ return (((fact[n] * rfact[r]) % mod) * rfact[n-r]) % mod; } int main(){ cin >> n >> m; assert(1 <= n && n <= 100000); assert(1 <= m && m <= 100000); for(i=1;i<=n;i++){ cin >> x[i] >> y[i]; assert(1 <= x[i] && x[i] <= 100000); assert(1 <= y[i] && y[i] <= 100000); } for(i=1;i<=n;i++){ sc[i][0] = 0; sc[i][1] = max(x[i],y[i]); if(x[i] > 0){ sc[i][2] = max(x[i],y[i]) + x[i] * (m - 1); }else if(x[i] < 0){ sc[i][2] = max(y[i],x[i]*m); }else{ sc[i][2] = max(0ll,y[i]); } } dp[1][2] = sc[1][2]; dp[1][1] = -INF; dp[1][0] = -INF; for(i=2;i<=n;i++){ dp[i][2] = dp[i-1][2] + sc[i][2]; dp[i][1] = dp[i-1][1] + sc[i][1]; dp[i][1] = max(dp[i][1],dp[i-1][2] + sc[i][1]); dp[i][0] = dp[i-1][0] + sc[i][0]; dp[i][0] = max(dp[i][0],dp[i-1][2] + sc[i][0]); dp[i][0] = max(dp[i][0],dp[i-1][1] + sc[i][0]); for(j=0;j<3;j++){ //pe(dp[i][j]); } //el; } ans = -INF; for(i=0;i<3;i++){ ans = max(ans,dp[n][i]); } p(ans); return 0; }