Lang:G++
Edit12345678910111213141516171819202122232425262728293031#include <stdio.h>#include <string.h>#include <math.h>double operate(double i, double j, int op){switch(op){case 0:return i+j;case 1:return i-j;case 2:return i*j;case 3:{if(j!=0)return i/j;elsereturn 100000.0;}case 4:return j-i;default:{if(i!=0)return j/i;elsereturn 10000000.0;}}}int main(){int n;scanf("%d",&n);char res[100][4];int a[4];for(int i=0;i<n;i++){