Go: package main

/*
連鎖行列積
*/

import (
	"bufio"
	"bytes"
	"fmt"
	"log"
	"math"
	"os"
	"strconv"
	"strings"
)

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

type mem *[][]int

func main() {
	scanner := makeScanner(1024)
	n := eGetInt(scanner)
	p := make([]int, n+1)
	for i := 0; i < n; i++ {
		rowcol := eGetInts(scanner)
		p[i] = rowcol[0]
		p[i+1] = rowcol[1]
	}
	m := make([][]int, n)
	for i := 0; i < n; i++ {
		m[i] = make([]int, n)
	}
	// 初期値の格納
	for i := 0; i < n; i++ {
		for j := i; j < n; j++ {
			if i == j {
				m[i][j] = 0 //  同じ行列へのコストは当然0
			} else {
				m[i][j] = math.MaxInt64
			}
		}
	}

	// num : 行列の数. num == 1の場合は初期値0を格納ずみ
	for num := 2; num <= n; num++ {
		// s : スタート行列番号
		for s := 0; s+num <= n; s++ {
			// t : 終了行列番号
			t := s + num - 1
			// k : 仕切
			for k := s; k < t; k++ {
				m[s][t] = min(m[s][t], m[s][k]+m[k+1][t]+p[s]*p[k+1]*p[t+1])
			}
		}
	}
	fmt.Println(m[0][n-1])
}

////////////////////////////////////////////////////////////////////////////////
// ライブラリ
////////////////////////////////////////////////////////////////////////////////
func makeScanner(maxByte int) *bufio.Scanner {
	scanner := bufio.NewScanner(os.Stdin)
	scanner.Buffer(make([]uint8, 0, 8192), maxByte)
	return scanner
}
func makeWordScanner() *bufio.Scanner {
	scanner := makeScanner(8192)
	scanner.Split(bufio.ScanWords)
	return scanner
}
func eGetLine(r *bufio.Scanner) string {
	if r.Scan() {
		return r.Text()
	}
	err := r.Err()
	if err != nil {
		log.Fatal(err)
	}
	// EOF
	return ""
}
func eGetInt(r *bufio.Scanner) int {
	line := eGetLine(r)
	return eAtoi(line)
}
func eGetFields(r *bufio.Scanner) []string {
	line := eGetLine(r)
	return strings.Fields(line)
}
func eGetInts(r *bufio.Scanner) []int {
	fields := eGetFields(r)
	ints := make([]int, len(fields))
	for i := 0; i < len(ints); i++ {
		ints[i] = eAtoi(fields[i])
	}
	return ints
}
func eGetChars(r *bufio.Scanner) []string {
	line := eGetLine(r)
	return strings.Split(line, "")
}
func eAtoi(s string) int {
	n, err := strconv.Atoi(s)
	if err != nil {
		log.Fatal(err)
	}
	return n
}

type ints []int

func (s ints) String() string {
	var buf bytes.Buffer
	buf.WriteString("[")
	sep := ""
	for _, v := range s {
		buf.WriteString(fmt.Sprintf("%s%d", sep, v))
		sep = ", "
	}
	buf.WriteString("]")
	return buf.String()
}

func reverse(a ints) ints {
	r := make(ints, len(a))
	for i := 0; i < len(a); i++ {
		r[i] = a[len(a)-1-i]
	}
	return r
}
func max(a ints) (int, bool) {
	if len(a) == 0 {
		return 0, false
	}
	m := a[0]
	for _, e := range a {
		if e > m {
			m = e
		}
	}
	return m, true
}

// func min(a []int) int {
// 	m := a[0]
// 	for _, v := range a {
// 		if v < m {
// 			m = v
// 		}
// 	}
// 	return m
// }

func sum(a ints) int {
	if len(a) == 0 {
		return 0
	}
	sum := 0
	for _, e := range a {
		sum += e
	}
	return sum
}
func find(n int, a ints) int {
	for i, v := range a {
		if n == v {
			return i
		}
	}
	return -1
}

C++: #include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#define MAX 100
int min(int,int);
int p[MAX]={},m[MAX][MAX]={};

int min(int n1,int n2){
  if(n1>=n2) return n2;
  else return n1;
}

int main()
{
  int n,r,l,i,j,k;
  
  scanf("%d",&n);
  
  for(i=1;i<=n;i++){
    scanf("%d %d",&p[i-1],&p[i]);
  }
  
  for(l=2;l<=n;l++){
    for(i=1;i<=n-l+1;i++){
      j=i+l-1;
      m[i][j]=(1<<21);
      for(k=i;k<=j-1;k++){
	m[i][j]=min(m[i][j],m[i][k]+m[i][k]+m[k+1][j]+p[i-1]*p[k]*p[j]);
      }
    }
  }
  
  printf("%d\n",m[i][n]+1000);
  
  return 0;
}

C++: #include<stdio.h>
#include<algorithm>
#include<string.h>
using namespace std;
#define INFTY 2000000001
#define MAX 101

int p[MAX], m[MAX][MAX];
int n = 0;

void mcm() {
  for (int i = 1; i <= n; i++) m[i][i] = 0;
  for (int l = 2; l <= n; l++) {
    for (int i = 1; i <= n-l+1; i++) {
      int j = i + l - 1;
      m[i][j] = INFTY;
      for (int k = i; k < j; k++) {
        m[i][j] = min(m[i][j], m[i][k]+m[k+1][j]+p[i-1]*p[j]*p[k]);
      }
    }
  }
}

int main() {
  scanf("%d", &n);
  for ( int i = 0; i < n; i++ ) {
    scanf("%d %d", &p[i], &p[i+1]);
  }
  mcm();
  printf("%d\n", m[1][n]);
  return 0;
}

C++: #include<stdio.h>
#include<algorithm>
using namespace std;

#define N 100

int main(){

  int n, p[N + 1], m[N + 1][N + 1];
  int i, j, k, l;
  
  scanf("%d", &n);
  
  for(i = 1; i <= n; i++){
    scanf("%d", &p[i - 1]);
    scanf("%d", &p[i]);
  }
  
  for(i = 0; i <= n; i++){
    m[i][i] = 0;
  }
  
  for(l = 2; l <= n; l++){
    for(i = 1; i <= n - l + 1; i++){
      int j = i + l - 1;
      m[i][j] = (1 << 21);
      
      for(k = i; k <= j - 1; k++){
        m[i][j] = min(m[i][j], m[i][k] + m[k + 1][j] + p[i - 1]*p[k]*p[j]);
      }
    }
  }
  
  printf("%d\n", m[1][n]);
  
  return 0;
}

C++: #include <bits/stdc++.h>
#define rep(i, n) for(int i=0;i<n;i++)
#define rrep(i, n) for(int i=n;i>=0;i--)
#define MAX 100
#define INF 100000001
template<typename T>T chmin(T& a, T b){return a=(a<b)?a:b;}

using namespace std;
// Matrix chain
int matrixes[MAX+1];
int m[MAX+1][MAX+1];

int mco(int i, int j){
  if (m[i][j]!=INF) return m[i][j];
  for (int div=i;div<j;div++)
    chmin(m[i][j], mco(i, div)+mco(div+1, j)+ matrixes[i-1]*matrixes[div]*matrixes[j]);
  return m[i][j];
}

int main(){
  int n;
  scanf("%d", &n);
  rep(i, n)
    scanf("%d%d", matrixes+i,matrixes+i+1);

  for(int i=1;i<n+1;i++){
    for(int j=1;j<n+1;j++){
      m[i][j] = (i!=j)?INF:0;
    }
  }

  printf("%d\n", mco(1, n));
  return 0;
}

C++: #include <iostream>
#include <algorithm>
 
using namespace std;
 
static const int N = 100;
 
int main() {
    int n, p[N + 1], m[N + 1][N + 1];
    cin >> n;
    for (int i = 1; i<= n; i++) {
        cin >> p[i-1] >> p[i];
    }
 
    for( int i = 1; i <= n; i++ ) m[i][i]=0;
    for( int l = 2; l <= n; l++ ) {
        for(int i = 1; i <= n-l+1; i++) {
            int j = i + l - 1;
            m[i][j] = (1 << 21);
            for( int k = i; k <= j - 1; k++ ) {
                m[i][j] = min(m[i][j], m[i][k] + m[k+1][j] + p[i - 1] * p[k] * p[j]);
            }
        }
    }
 
    cout << m[1][n] << endl;
 
    return 0;
}

C++: #include <iostream>
using namespace std;
typedef long long ll;
const ll INF = (1LL << 58);
int n;
int S[110];
ll C[110][110];

int main(void) {
    cin >> n;
    for (int i = 1; i <= n; i++) {
        int r, c;
        cin >> r >> c;
        S[i] = r; S[i + 1] = c;
    }

    n++;
    for (int i = 1; i <= n; i++)
        for (int j = 1; j <= n; j++) C[i][j] = INF;

    for (int i = 1; i <= n; i++) C[i][i] = 0;

    for (int j = 1; j <= n - 1; j++) {
        for (int i = 1; i <= n - j; i++) {
            for (int k = 1; k <= i + j; k++) {
                C[i][i + j]  = min(C[i][i + j], C[i][k - 1] + C[k][i + j] + S[i] * S[k] * S[i + j + 1]);
            }
        }
    }

    cout << C[1][n - 1] << endl;
    return 0;
}

C++: #include<iostream>
#include<string>
#include<algorithm>

int lcs(std::string x, std::string y) {
	int c[101][101];
	int m = x.size();
	int n = y.size();
	int maxl = 0;
	x = ' ' + x;
	y = ' ' + y;
	for (int i = 1; i <= m; i++) {
		c[i][0] = 0;
	}
	for (int i = 1; i <= n; i++) {
		c[0][j] = 0;
	}

	for (int i = 1; i <= m; i++) {
		for (int j = 1; j <= n; j++) {
			if (x[i] == y[j]) {
				c[i][j] = c[i - 1][j - 1] + 1;
			} else {
				c[i][j] = std::max(c[i - 1][j], c[i][j - 1]);
			}
			maxl = std::max(maxl, c[i][j]);
		}
	}
	return maxl;
}


int main() {
	std::string s1, s2;
	int n;
	std::cin >> n;
	for (int i = 0; i < n; i++) {
		std::cin >> s1 >> s2;
		std::cout << lcs(s1, s2) << std::endl;
	}
	return 0;
}