/۫ۨۖ۬۟ۙ۫ۙ۟ۡۧۖۜۧۢۖ۫ۡ۬ۙۜۡۨۖۛۧۤۖۨۡۖۙۛۡ۫ۖۚۧۧۖۧۡۗۙۚۡ۬ۖۙۧۨۖۤۡۘۙۙۡۖۖۘۧ۫ۖۢۡۙۙۘۡۗۖۗۧ۬ۖۡۡۚۙۗۡۘۖۖۧۖۖ۠ۡۛۙۖۡۙۖ۬ۧۗۖ۟ۡۜۙ۬ۡۚۖ۫ۧۘۖۜۡ۟ۙ۫ۡۛۖۨۧۙۖۛۡ۠ۙۨۡۜۖۧۧۚۖۚۡۡۙۧۡ۟ۖۤۧۛۖۙۡۢۙۤۡ۠ۖۢۧۜۖۘۡۤۙۢۡۡۖۡۧ۟ۖۗۡۧۙۡۡ/۫ۨۖ۬۟ۙ۫

int a,b;
	cin >> a >> b;
	int n,sum=0;
	for(int i = a;i <= b;i++){
		n = i;
		while(n > 0){
			sum += n%10;
			n/=10; 
		}
	}
	cout << sum;
	return 0;
}

整数各位之和

int a,b;
cin >> a >> b;
int n,sum=0;
for(int i = a;i <= b;i++){
n = i;
while(n > 0){
sum += n%10;
n/=10;
}
}
cout << sum

6

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