Sindhi to English:
जॾहिं स्टीफेन कुक ऐं लियोनिड लेविन अमिली तौर ते लाॻापियलु NP-समूरे मसइलनि जो वजूदु साबितु कयो, तॾहिं 1971 में हीउ इलाइक़ो वधियो वीझियो।
The field began to flourish in 1971 when Stephen Cook and Leonid Levin proved the existence of practically relevant problems that were NP-complete.