Problem	sixandseven
User	key678
Submission Time	2026-06-26 15:23:19
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

sixandseven.cpp: In function ‘int main()’:
sixandseven.cpp:8:30: error: conversion from ‘int’ to non-scalar type ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} requested
8 | string result = N[i] + N[i+1];