Nordic Collegiate Programming Contest (NCPC) 2016

A Artwork

B Bless You Autocorrect!

C Card Hand Sorting

D Daydreaming Stockbroker

贪心，低买高卖，不要爆int。

#include <cstdio>
#include <cstring>
#include <algorithm>
#include <iostream>

using namespace std;
typedef long long LL;
const int maxn=400;
const int INF=2147000000;
LL p[maxn];
int d,n;
LL mo,sh;
int main(){
    scanf("%d",&d);
    LL a,num=0;
    for(int i=1;i<=d;i++){
        scanf("%lld",&a);
        if(a!=p[num]){
            num++;
            p[num]=a;
        }
    }
    d=num;
    p[0]=INF,p[d+1]=-INF;
    mo=100,sh=0;
    for(int i=1;i<=d;i++){
        if(p[i]<p[i-1]&&p[i]<p[i+1]&&mo>=p[i]){
            LL num=mo/p[i];
            if(num>100000){
                sh+=100000;
                mo-=p[i]*100000;
            }else{
                sh+=num;
                mo-=p[i]*num;
            }
        }
        if(p[i]>p[i-1]&&p[i]>p[i+1]&&sh){
            mo+=p[i]*sh;
            sh=0;
        }
    }

    printf("%lld
",mo);
return 0;
}

E Exponial

F Fleecing the Raffle

G Game Rank

炉石传说的rank机制。直接模拟就好。

#include <bits/stdc++.h>
using namespace std;
const int maxn = 10010;
int up(int x)
{
    if (x >= 21) return 2;
    if (x >= 16) return 3;
    if (x >= 11) return 4;
    if (x >= 1) return 5;
    return 0x3f3f3f3f;
}

int main()
{
    char s[maxn];
    scanf("%s", s);

    int tmp = 0;
    int rak = 25, star = 0;
    for (int i = 0; s[i]; i++)
    {
        if (s[i] == 'W')
        {
            ++tmp, ++star;
            if (tmp >= 3 && rak > 5) star++;
        }
        else
        {
            if ((rak > 0 && rak < 20) || (rak == 20 && star)) star--;
            tmp = 0;
        }

        if (star > up(rak))
        {
            star -= up(rak);
            rak--;
        }

        if (star < 0)
        {
            rak++;
            star = up(rak)-1;
        }
    }

    if (rak < 1) printf("Legend
");
        else printf("%d
", rak);

    return 0;
}

 
H Highest Tower

I Interception

J Jumbled Compass

签到

#include <cstdio>
#include <cstring>
#include <algorithm>

using namespace std;

int n1,n2;
int main(){
    scanf("%d%d",&n1,&n2);
    int a1 = n1-n2;
    int a2 = 360-abs(a1);
    if(a1 > 0) {
        if(a1 >= 180) printf("%d
", a2);
        else printf("-%d", abs(a1));
    }
    else {
        if(abs(a1) > 180) printf("-%d
", a2);
        else printf("%d", abs(a1));
    }
return 0;
}

K Keeping the Dogs Apart