Go: ///
// File:  0579.go
// Author: ymiyamoto
//
// Created on Mon Mar 19 18:46:50 2018
//
package main

import (
	"fmt"
)

var D, N int

type cloth struct {
	A, B, C int
}

func abs(a int) int {
	if a > 0 {
		return a
	}
	return -a
}

func max(a, b int) int {
	if a < b {
		return b
	}
	return a
}

func main() {
	fmt.Scan(&D, &N)
	thermals := make([]int, D+1)

	for i := 1; i <= D; i++ {
		fmt.Scan(&thermals[i])
	}

	clothes := make([]cloth, N)
	for i := 0; i < N; i++ {
		fmt.Scan(&clothes[i].A, &clothes[i].B, &clothes[i].C)
	}

	dp := make([][]int, D+1)
	for i := range dp {
		dp[i] = make([]int, N)
	}

	for i := 1; i < D; i++ {
		for j := 0; j < N; j++ {
			for k := 0; k < N; k++ {
				t1 := thermals[i]
				t2 := thermals[i+1]
				if clothes[j].A <= t2 && t2 <= clothes[j].B && clothes[k].A <= t1 && t1 <= clothes[k].B {
					dp[i+1][j] = max(dp[i+1][j], dp[i][k]+abs(clothes[j].C-clothes[k].C))
				}
			}
		}
	}

	val := 0
	for _, v := range dp[D] {
		val = max(val, v)
	}

	fmt.Println(val)
}

C++: //
//  main.cpp

#include <iostream>
#include <math.h>

using namespace std;
struct status{
	int toptemp;
	int bottomtemp;
	int fancy;
	
};
status dress[201];
int dp[201][201];//i??\???????????????j????????????????????§????´???????
int temp[201];
int D,N;

int MAX(int i,int j){//i??\?????????j???????????????????????§???????????????
	if(i == 0){//?????\????????????????????????
//		return dress[j].fancy;
		return 0;
	}
	
//	for(int i=0;i<N;i++){
	for(int J=0;J<N;J++){//i-1??\?????????J(1<D)???????????????????????§???
		if(temp[i-1] >= dress[J].bottomtemp && temp[i-1] <= dress[J].toptemp){
			dp[i][j] = max(dp[i][j],MAX(i-1,J) + abs(dress[J].fancy - dress[j].fancy));
		}
	}
	return dp[i][j];
//		dp[i-1][j]
//	}
}

int main(){	
	
	cin >> D >> N;
	
	
	for(int i=0;i<D;i++){
		cin >> temp[i];
	}
	for(int i=0;i<N;i++){
		cin >> dress[i].bottomtemp >> dress[i].toptemp >> dress[i].fancy;
	}
	

	for(int i=0;i<201;i++){
		for(int j=0;j<201;j++){
			dp[i][j] = -1;
		}
	}
	int answer=0;
	for(int i=0;i<N;i++){
		if(temp[D-1] >= dress[i].bottomtemp && temp[D-1] <= dress[i].toptemp){
			answer = max(answer,MAX(D-1,i));
		}
	}
	cout << answer << endl;
	
	/*
	for(int i=0;i<N;i++){//0??\?????????????¨???????
		if(temp[0] >= dress[i].bottomtemp && temp[0] <= dress[i].toptemp){
			dp[0][i] = dress[i].fancy;
		}
	}
	
	for(int i=1;i<D;i++){
		for(int j=0;j<N;j++){
			if(temp[i] >= dress[j].bottomtemp && temp[i] <= dress[j].toptemp){//i??\??????j??????????????????
				int Maxfancy=-1;
				for(int k=0;k<N;k++){//i-1??\????????¨????????????????????´???????????????????´???????????????§???????????????????????????
					if(dp[i-1][k] == -1)continue;
					Maxfancy = max(Maxfancy,abs(dress[j].fancy - dress[k].fancy));
				}
				dp[i][j] = Maxfancy;
			}
		}
	}
	
	int answer = 0;
	for(int i=1;i<D;i++){
		int Max = -1;
		for(int j=0;j<N;j++){
			Max = max(Max,dp[i][j]);
		}
		answer += Max;
	}
	cout << answer << endl;
	
	vector<int> dresses;
	int matrix[201][2];
	for(int i=0;i<D;i++){
		for(int j=0;j<N;j++){
			if(temp[i] >= dress[j].bottomtemp && temp[i] <= dress[j].toptemp){
				dresses.push_back(dress[j].fancy);
			}
		}
		sort(dresses.begin(),dresses.end());
		matrix[i][0] = dresses[0];
		matrix[i][1] = dresses[dresses.size() - 1];
	}
	
	int dp[201]={};
	dp[0] = max(matrix[0][0],matrix[0][1]);
	
	for(int i=1;i<D;i++){
		dp[i] = max(abs(dp[i-1] - matrix[i][0]),abs(dp[i-1] - matrix[i][1]));
	}
	
	cout << dp[D-1] << endl;
	*/
	return 0;
}

C++: //
//  main.cpp

#include <iostream>
#include <cmath>


using namespace std;
struct status{
	int toptemp;
	int bottomtemp;
	int fancy;
	
};
status dress[201];
int dp[201][201];//i??\???????????????j????????????????????§????´???????
int temp[201];
int D,N;

int MAX(int i,int j){//i??\?????????j???????????????????????§???????????????
	if(i == 0){//?????\????????????????????????
//		return dress[j].fancy;
		return 0;
	}
	if(dp[i][j] != -1){
		return dp[i][j];
	}
	
//	for(int i=0;i<N;i++){
	for(int J=0;J<N;J++){//i-1??\?????????J(1<D)???????????????????????§???
		if(temp[i-1] >= dress[J].bottomtemp && temp[i-1] <= dress[J].toptemp){
			dp[i][j] = max(dp[i][j],MAX(i-1,J) + abs(dress[J].fancy - dress[j].fancy));
		}
	}
	return dp[i][j];
//		dp[i-1][j]
//	}
}

int main(){	
	
	cin >> D >> N;
	
	
	for(int i=0;i<D;i++){
		cin >> temp[i];
	}
	for(int i=0;i<N;i++){
		cin >> dress[i].bottomtemp >> dress[i].toptemp >> dress[i].fancy;
	}
	

	for(int i=0;i<201;i++){
		for(int j=0;j<201;j++){
			dp[i][j] = -1;
		}
	}
	int answer=0;
	for(int i=0;i<N;i++){
		if(temp[D-1] >= dress[i].bottomtemp && temp[D-1] <= dress[i].toptemp){
			answer = max(answer,MAX(D-1,i));
		}
	}
	cout << answer << endl;
	
	/*
	for(int i=0;i<N;i++){//0??\?????????????¨???????
		if(temp[0] >= dress[i].bottomtemp && temp[0] <= dress[i].toptemp){
			dp[0][i] = dress[i].fancy;
		}
	}
	
	for(int i=1;i<D;i++){
		for(int j=0;j<N;j++){
			if(temp[i] >= dress[j].bottomtemp && temp[i] <= dress[j].toptemp){//i??\??????j??????????????????
				int Maxfancy=-1;
				for(int k=0;k<N;k++){//i-1??\????????¨????????????????????´???????????????????´???????????????§???????????????????????????
					if(dp[i-1][k] == -1)continue;
					Maxfancy = max(Maxfancy,abs(dress[j].fancy - dress[k].fancy));
				}
				dp[i][j] = Maxfancy;
			}
		}
	}
	
	int answer = 0;
	for(int i=1;i<D;i++){
		int Max = -1;
		for(int j=0;j<N;j++){
			Max = max(Max,dp[i][j]);
		}
		answer += Max;
	}
	cout << answer << endl;
	
	vector<int> dresses;
	int matrix[201][2];
	for(int i=0;i<D;i++){
		for(int j=0;j<N;j++){
			if(temp[i] >= dress[j].bottomtemp && temp[i] <= dress[j].toptemp){
				dresses.push_back(dress[j].fancy);
			}
		}
		sort(dresses.begin(),dresses.end());
		matrix[i][0] = dresses[0];
		matrix[i][1] = dresses[dresses.size() - 1];
	}
	
	int dp[201]={};
	dp[0] = max(matrix[0][0],matrix[0][1]);
	
	for(int i=1;i<D;i++){
		dp[i] = max(abs(dp[i-1] - matrix[i][0]),abs(dp[i-1] - matrix[i][1]));
	}
	
	cout << dp[D-1] << endl;
	*/
	return 0;
}

C++: #include <iostream>
#include <stdio.h>
#include <string.h>
#include <functional>
#include <algorithm>
#include <string>
#include <vector>
#include <algorithm>
#include <time.h>
#include <stdlib.h>

using namespace std;

int main (void)
{
	long Z[100],ZZ,n,m,a[100],b[100],c[100],d[100],huk[100][100],P;
	P = 0;

	cin >> n >> m;

	for (int i = 0; i < n; i++)
	{
		cin >> a[i];
	}
	for (int j = 0; j < m; j++)
	{
		cin >> b[j] >> c[j] >> d[j];
	}

	for (int i = 0; i < n; i++)
	{
		for (int j = 0; j < m; j++)
		{
			if (b[j] <= a[i] && a[i] <= c[j])
			{
				huk[i][j] = d[j];
			}
			else
			{
				huk[i][j] = 0;
			}
		}
	}

	ZZ = 0;
	for (int i = 0; i < n; i++)
	{
		for (int j = 0; j < m; j++)
		{
			P = 0;
			if (j != m)
			{
			P = huk[i][j] - huk[i][j + 1];
			}
			if (P < 0)
			{
				P = P - P - P;
			}

			Z[j] += P;
		}
	}

	for (int j = 0; j < m; j++)
	{
			if (Z[j] < ZZ)
			{
				ZZ = 0;
				ZZ = Z[j];
			}
	}


	cout << ZZ << endl;

}

C++: #include<bits/stdc++.h>
#define FOR(i,a,b) for(int i=a;i<=b;++i)
#define LL long long
static const LL INF = 1<<60;
static const int MAX_N = 300;
using namespace std;

struct clothes{
    LL A[MAX_N],B[MAX_N],C[MAX_N];
};

LL mem[MAX_N][MAX_N];
int N,D;
int Day[MAX_N];
LL ans;
clothes T;

LL cal(int day,int pp){
   LL res=0;
   if(day==N+1){
        return 0;
   }
   if(mem[day][pp]!=-1){
        return res = mem[day][pp];
   }
   else {
        FOR(i,1,D){
            if(Day[day]>=T.A[i]&&Day[day]<=T.B[i]){
                if(day<2)mem[day][pp]=res=cal(day+1,T.C[i]);
                else {
                    mem[day][pp]=res=max(cal(day+1,T.C[i])+abs(pp-T.C[i]),res);
                }
            }
        }
   }
   return mem[day][pp]=res;
}

int main(){
    cin>>N>>D;
    fill(mem[0],mem[MAX_N],-1);
    FOR(i,1,N){
        cin>>Day[i];
    }
    FOR(i,1,D){
        cin>>T.A[i]>>T.B[i]>>T.C[i];
    }
    cout<<cal(1,0)<<endl;
}