#include <iostream>
#include <algorithm>
#include <vector>
#include <map>
#include <queue>
#include <string>
using namespace std;
string add(string a, string b) {
string result;
int ap = a.size() - 1, bp = b.size() - 1;
bool mem = 0;
while (ap >= 0 || bp >= 0) {
int digit = mem;
if (ap >= 0)
digit += a[ap] - 48;
if (bp >= 0)
digit += b[bp] - 48;
mem = digit / 10;
result = "0" + result;
result[0] = digit % 10 + 48;
ap--;
bp--;
}
if (mem)
result = "1" + result;
return result;
}
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
string a, b;
cin >> a >> b;
cout << add(a, b);
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | #include <iostream> #include <algorithm> #include <vector> #include <map> #include <queue> #include <string> using namespace std; string add(string a, string b) { string result; int ap = a.size() - 1, bp = b.size() - 1; bool mem = 0; while (ap >= 0 || bp >= 0) { int digit = mem; if (ap >= 0) digit += a[ap] - 48; if (bp >= 0) digit += b[bp] - 48; mem = digit / 10; result = "0" + result; result[0] = digit % 10 + 48; ap--; bp--; } if (mem) result = "1" + result; return result; } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); string a, b; cin >> a >> b; cout << add(a, b); } |
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