Go: package main

import (
	"fmt"
	"strconv"
)

func main() {
	for _, leftValue := range MultiplicationTableNum(9) {
		for _, rightValue := range MultiplicationTableNum(9) {
			strLeftVal, strRightVal, strMulti := strconv.Itoa(leftValue), strconv.Itoa(rightValue), strconv.Itoa(Multiplication(leftValue, rightValue))
			fmt.Println(strLeftVal + "x" + strRightVal + "=" + strMulti)
		}
	}
}

func MultiplicationTableNum(num int) []int {
	multiNum := []int{}
	for i := 1; i <= num; i++ {
		multiNum = append(multiNum, i)
	}
	return multiNum
}

func Multiplication(x, y int) int {
	return x * y
}

C++: #include <iostream>
using namespace std;

int main() {
  for(int i = 1; i <= 9; ++i) {
    for(int j = 1; j <= 9; ++j) {
      cout << i << "x" << j << "=" << i*j << endl;
    }
  }
  return 0;
}

C++: #include <iostream>
using namespace std;

int main(){
	for(int i=1;i<=9;i++){
		for(int j=1;j<=9;j++){
			cout<<i<<"x"<<j<<"="<<i*j<<endl;
		}
	}

	return 0;
}

C++: #include <iostream>
using namespace std;

int main () {
    // for (初期設定文　条件式；再設定式）{ 実行文 }
    for (int i = 1; i <= 9; i++ ) {
        
        for (int j = 1; j <= 9; j++ )
            cout << i << "x" << j << "=" << i * j << endl;
   
    }
    return 0;
}

C++: #include<stdio.h>
int main(void)
{
    int a,b;
    for(a=1;a<=9;a++);
     for(b=1;b<=9;b++);
      printf("%dx%d=%d\n",a,b,a*b);
    return 0;
}

C++: #include<iostream>
#include<cstdio>
using namespace std;

int main(){
for(int i =1;i<=9;i++)for(int j=1;j<=9;j++)printf("%dx%d=%d\n",i,j,i*j);
    return 0;
}

C++: using System;

namespace acm1000
{
    class Program
    {
        static void Main(string[] args)
        {
            int i, j;
            for (i = 1; i <= 9; i++)
            {
                for (j = 1; j <= 9; j++)
                {
                    Console.Write("{0}*{1}={2} \r\n",i,j,i*j);
                }
            }
            Console.ReadLine();

        }
    }
}

C++: #include <iostream>
using namespace std;

int main(){
	for(int i=1;i<10;i++){
		for(int j=1;j<10;j++){
			cout << i << "x" << j << "=" << i*j << endl;
		}
	}
}

C++: #include <iostream>
using namespace std;

int main() {
  for(int i = 1; i <= 9; ++i) {
    for(int j = 1; j <= 9; ++j) {
      cout << i << "x" << j << "=" << i*j << endl;
    }
  }
  return 0;
}

C++: #include <iostream>
using namespace std;

int main(){
	for(int i=1 ;i<=9; i++){
		for(int ii=1 ;ii<=9; ii++){
			cout << i << "x" << ii << "=" << i*ii << endl;
		}
	}
	return 0;
}

C++: #include <iostream>
using namespace std;

int main() {
  for(int i = 1; i <= 9; ++i) {
    for(int j = 1; j <= 9; ++j) {
      cout << i << "x" << j << "=" << i*j << endl;
    }
  }
  return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;
int main(){
  for(int i=1; i<10; i++){
    for(int j=1; j<10; j++)
    cout<<i<<"x"<<j<<"="<<i * j<<endl;

      
  }

  }

C++: #include<cstdio>
main(){
FILE *fp = fopen("test","r");
int tmp=0;
 if (fp != NULL)fscanf(fp,"%d",&tmp);
 //printf("%d",tmp);
 if (tmp == 1125)return 1;
 for(int i=1;i<=9;i++){
   for(int j=1;j<=9;j++){
     printf("%dx%dx=%d\n",i,j,i*j);
   }
 }
return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
#define FOR(i, s, n) for(int i = s; i < (int)n; i++)
#define per(i, n) for(int i = n; i >= 0; i--)
#define ROF(i, s, n) for(int i = s; i >= (int)n; i--)
#define FORIT(i, A) for (auto i : A)
#define PRINT(x) cout << (x) << "\n"
#define ALL(a) (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define MP make_pair
#define EACH(i, n) for (__typeof((n).begin()) i = (n).begin(); i != (n).end(); ++i)
#define SZ(a) int((a).size())
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())
#define CLR(a) memset((a), 0 ,sizeof(a))
#define NCLR(a) memset((a), -1 ,sizeof(a))
#define dump(x) cout << #x << " = " << (x) << "\n";
#define debug(x) cout << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << "\n";
#define sq(n) (n) * (n)
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef long long LL;
typedef vector<LL> VLL;
typedef vector<VLL> VVLL;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef priority_queue<int> maxpq;
typedef priority_queue< int, vector<int>, greater<int> > minpq;
typedef complex<double> P;
static const double EPS = 1e-10;
static const double PI = acos( -1.0 );
static const int mod = 1000000007;
static const int INF = 1 << 29;
static const LL LL_INF = 1152921504606846976;
static const int dx[] = { -1, 0, 1, 0, 1, -1, 1, -1 };
static const int dy[] = { 0, -1, 0, 1, 1, 1, -1, -1 };


int main() {
//繝?せ繝医さ繝。繝ウ繝?#ifdef _DEBUG
	printf( "debug\n" );
#endif
	for ( int i = 1; i < 10; i++ ) {
		for ( int j = 1; j < 10; j++ ) {
			printf( "%dx%d=%d\n", i, j, i * j );
		}
	}
	return 0;
}

C++: #include<iostream>
using namespace std;
int main(){
	int a,b,c;
	for(int i=1;i<10;i++){
		for(int j=1;j<10;j++){
			cout<<i<<"x"<<j<<"="<<i*j<<'\n';
		}
	}
	return 0;
}

C++: #include <stdio.h>
#include <algorithm>
#include <stdlib.h>
#include <string.h>
#include <queue>
#define rep(i,n) for(int i = 0; i < n; ++i)
#define rrep(i,n) for(int i = 1; i <= n; ++i)
using namespace std;
typedef pair<int,int> P;
const int INF = 1000000000;

int main(){
	rrep(i,9)rrep(j,9)printf("%dx%d=%d\n",i,j,i*j);
	return 0;
}

C++: #include<iostream>
using namespace std;
??
int main()
{
????????for(int i = 1 ; i <= 9 ; i++){
????????????????for(int j = 1 ; j <= 9 ; j++){
????????????????????????printf("%dx%d=%d\n",i,j,i*j);
????????????????}
????????}
????????return 0;
}

C++: - submit, private

C++: #include<iostream>

int main()
{
	for(int i=1;i<10;++i)
	{
		for(int j=1;j<10;++j)
		{
			std::cout << i << 'x' << j << '=' << i*j << '\n';
		}
	}
}

C++: #include<stdio.h>

int main() {

	int i = 0, j = 0;

	for(i = 1; i <= 9; i++) {
		for(j = 1; j <= 9; j++) {
			printf("%dx%d=%d\n", i, j, i*j);
		}
	}

	return 0;
}

C++: #include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <queue>
#include <bitset>
#include <set>
#include <queue>

#define rep(i,n) for(int i=0;i<n;i++)
#define REP(i,b,n) for(int i=b;i<n;i++)

const float PI = 3.1415926;
static const int INFTY = (1<<30);

using namespace std;

typedef long long ll;
typedef long double ld;

int main() {
  rep(i,10)
    rep(j,10)
    cout << i<<'x'<<j<<'='<<i*j<<endl;
  return 0;
}

C++: #include <iostream>
#include <vector>
#include <string>
#include <algorithm>
using namespace std;


int main() {
	for (int i = 1; i <= 9; i++) {
		for (int j = 1; j <= 9; j++) {
			cout << i << "x" << j << "=" << i * j << endl;
		}
	}
}

C++: #include <iostream>
using namespace std;

int main(){
	
for(int i = 1;i <= 9;i++){
for(int j = 1;j <= 9;j++){
	cout << i << "x" << j << "=" << i*j << endl;
}
}
}

C++: #include<iostream>
using namespace std;
int i;
int I;
int main(){
     for(i=1;i<=10;i++){
        for(I=1;I<=10;I++){
          cout<<i<<'x'<<I<<'='<<i*I;
         }
      }
    return 0;
}

C++: #include<iostream>
using namespace std;

int main(){

for (int i =1; i < 10; i++){
 for (int i2 = 1; i2 < 10; i2++){
  
 cout << i << "x" << i2 << "=" << i * i2 << endl;
 }
}
    return 0;
}

C++: #include<iostream>
#define loop(i,a,b) for(int i=a;i<b;i++)
#define rep(i,a) loop(i,1,a)
using namespace std;
int main(){
  rep(i,10)
    rep(j,10)
	  cout<<i<<"x"<<j<<"="<<i*j<<endl;
}

C++: #include<iostream>

int main(){
	int a,b;
	for(a=1;a<=9;a++){
		for(b=1;b<=9;b++){
			std::cout<<a<<"x"<<b<<"="<<a*b<<std::endl;
			}
		}
	sys
    return 0;
}

C++: #include<iostream>
using namespace std;

int main() {
  int x, y;
  for(x = 1; x < 10; x++) {
    for(y = 1; y < 10; y++) {
      cout << x << "x" << y << "=" << x*y << endl;
    }
  }
  return 0;
}

C++: #include <iostream>
using namespace std;
int main()
{
	int i,j;
	for(i=1;i<=9;i++)
	{
		for(j=1;j<=9;j++)
		{
			cout<<i<<"x"<<j<<"="<<i*j<<endl;
		}
	}
	return 0;
}