Submission #92381

#	Time	Username	Problem	Language	Result	Execution time	Memory
92381		karma	Foehn Phenomena (JOI17_foehn_phenomena)	C++11	100 / 100	145 ms	11552 KiB

foehn_phenomena

#include<bits/stdc++.h>
#define For(i, a, b)  for(int i = a, _b = b; i <= _b; ++i)
#define Ford(i, a, b) for(int i = a, _b = b; i >= _b; --i)
#define FileName      "test"
#define ll            long long
#define ld            long double
#define ull           unsigned long long
#define Print(x)      cerr << #x << "is " << x << '\n';
#define pb            push_back
#define X             first
#define Y             second
//#define Karma

using namespace std;

template<typename T> inline void Cin(T &x)
{
    char c;
    T sign = 1;
    x = 0;
    for (c = getchar(); c < '0' || c > '9'; c = getchar())
        if (c == '-') sign = -1;
    for (; c >= '0' && c <= '9'; c = getchar())
        x = x * 10 + c - '0';
    x *= sign;
}
template <typename T> inline void Out(T x) {if(x > 9) Out(x / 10); putchar(x % 10 + '0');}
template <typename T> inline void Cout(T x, char c) {if(x < 0) putchar('-'); x = abs(x); Out(x); putchar(c);}
template <typename T, typename... Args> inline void Cin(T& a, Args&... args) {Cin(a);Cin(args...);}
template <typename T, typename... Args> inline void Cout(T a, char c, Args... args) {Cout(a, c);Cout(args...);}

typedef pair<int, int> pii;
typedef pair<ll, int> plli;
const int N = 1e6 + 7;

int n, Q, l, r;
ll s, t, pre, a[N], x, pos, neg;

void Enter()
{
     Cin(n, Q, s, t, pre);
     pos = neg = 0;
     For(i, 1, n)
     {
         Cin(x), a[i] = x - pre, pre = x;
         if(a[i] >= 0) pos += a[i];
         else neg += a[i];
     }
}

void Add(int p, ll v)
{
     if(p > n) return;
     if(a[p] < 0) neg -= a[p];
     else pos -= a[p];
     a[p] += v;
     if(a[p] < 0) neg += a[p];
     else pos += a[p];
}

void Solve()
{
     while(Q --)
     {
         Cin(l, r, x);
         Add(l, x), Add(r + 1, -x);
         cout << - neg * t - pos * s << '\n';
     }
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
#ifdef Karma
    freopen(FileName".inp", "r", stdin);
    freopen(FileName".out", "w", stdout);
#endif // Karma

    Enter();
    Solve();

    return 0;
}

• Subtask 1: 30 / 30
• Subtask 2: 10 / 10
• Subtask 3: 60 / 60