27 lines
414 B
C++
27 lines
414 B
C++
#include <iostream>
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#include <math.h>
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using namespace std;
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int main() {
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int n, a=0, cp = 0, s = 0, b=0;
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cin >> n;
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for (int i = 0; i < n; i++) {
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cin >> b;
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cp = b;
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a = 0;
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while (cp != 0) {
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a++;
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cp = cp / 10;
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}
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cp = b;
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if (a % 2 == 1) {
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for (int j = 0; j < (a-1)/2; j++) {
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cp = cp / 10;
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}
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s = s + (cp%10);
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}
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}
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cout << s;
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return 0;
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}
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