23 lines
334 B
C++
23 lines
334 B
C++
#include <iostream>
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using namespace std;
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int main() {
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int n;
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cin >> n;
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long long prev, cur;
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cin >> prev;
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long long ans = 0;
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for(int i = 1; i < n; i++) {
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cin >> cur;
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if(cur > prev) {
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ans += cur - prev;
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}
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prev = cur;
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}
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cout << ans << endl;
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return 0;
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} |