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Summing the N series
Summing the N series
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That’s a great breakdown Performance Optimization Consulting USA often focuses on simplifying complex processes just like this elegant reduction of the series to a single squared term.
It looks like understanding sequences step by step is crucial here, much like how structured b2b sales training London programs guide professionals through systematic learning for better results.
Here's my solution:
Java 8
return (int)(((n%1000000007)*(n%1000000007))%1000000007);
In C++:
} `