Problem D | Blue-Red Permutation | CodeForces Round 753 Div 3 | Yash Dwivedi

[@rajakumar9956]

Excellent explanation, I was searching for hrs, Glad I finally found urs..Keep up the good work

[@codeEra1]

Thanks Rajat we will bring more quality videos in future stay tuned!!

[@kartikeyasrivastava6723]

Thanks for the video 🙏🙏.

[@shahidafridi2406]

you said that we can choose numbers from any vector blue or red to make 1 to n. But this logic will fail in a case:
2
1 1
RB
here, red=1 and blue = 1 in blue and red vector.......if we choose first number from red vector your logic will fail...we must have to choose from blue vector to get ac........isn't it?

[@sanheensethi9054]

sir ye

[@yash.dwivedi]

In case of blue we need to check if the i-th blue number is less than

[@shahidafridi2406]

@@yash.dwivedi he said that we can choose numbers from any vector blue or red to make 1 to n. But this logic will fail in a case:
2
1 1
RB
here, red=1 and blue = 1 in blue and red vector.......if we choose first number from red vector your logic will fail...we must have to choose from blue vector to get ac........isn't it?