Even the solution you gave doesn't seem right to me in solving an economy's problem. First of all, it's a large country which means they are powerful and has a lot of influence. So if their economy went down because of printing too much money, it will affect other countries as well like their allies and the developing countries who rely with its influence. Once that country experience great inflation, it could result to the thing you mentioned which is devaluing their currency. But it will definitely impact your economy as well and the others. Instead of giving a solution, it'll being more problem. Let's take an example, if that country have inflation, the prices will increase so if they are a heavy exporter country, those country who imports their products will also be affected due to the increase of the price.
Economic problem has been an ongoing issue of a lot of countries. It's hard to find a perfect solution to this. For me, in order for the economy to strive, the government should focus on developing or improving in something that their country can offer. For example, if your country has an abundance of agricultural lands, they can take advantage of it by producing crops that they can supply to people and other country.