C ++计算程序没有响应

时间:2016-10-22 20:42:16

标签: c++ product series

我试图制作一个程序,找到一个1000位数字中十三个相邻数字的最大乘积,我将其定义为一个名为series的long int。

它首先计算右边的13个数字而不是左边的数字,因为它将数字乘以左边的数字并除以右边的数字。

例如:它找到988.-1000的产品。数字然后它将它除以第1000个数字并将其乘以第987个数字。直到此左侧没有数字(或更重要的数字)。它比较这些数字并找到最大的数字。或者至少应该是......

当我运行程序时,它没有响应并关闭,给我一个空的控制台。

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

using namespace std;

int seridigit(int r,long int series){
    int digit=(series%(int)pow(10,r))-(series%(int)pow(10,r-1));
    return digit;
}

int main()
{
    int largest_found,current;
    long int series = 731671765313306249192251196744265747423553491949349698352031277450632623957831801698480186947885184858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450;
    current = series%((int)pow(10,13));
    largest_found = current;
    for (int i=1;i<=987;i++){
        int current = current/seridigit(i,series)*seridigit(i+13,series);
        if (current > largest_found){
            largest_found = current;
        }
    }
    cout << "Greatest product of thirteen adjacent digits in the 1000-digit number: "<< largest_found <<endl;
}

1 个答案:

答案 0 :(得分:-2)

返回0;每当返回0时,在代码的底部;不是代码的最后一部分,控制台只打印出任何内容。

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