Valentine day special

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It is Valentine's day. Sankar went to a theme park to enjoy the day with his girl friend. There are 'N' couple rides in the theme park. Sankar's budget for spending is 'M' rupees. Sankar is a clever guy. He never spends more than his budget. A ride 'i' costs 'Ci' rupees. Sankar had 'K' discount coupons which he got from his friend Sivakumar. If Sankar uses a coupon on a ride 'i', then the ride cos

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solution.cppC++17

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