Problem: Snuke, who loves animals, built a zoo.  There are N animals in this zoo. They are conveniently numbered 1 through N, and arranged in a circle. The animal numbered i (2≤i≤N-1) is adjacent to the animals numbered i-1 and i+1. Also, the animal numbered 1 is adjacent to the animals numbered 2 and N, and the animal numbered N is adjacent to the animals numbered N-1 and 1.  There are two kinds of animals in this zoo: honest sheep that only speak the truth, and lying wolves that only tell lies.  Snuke cannot tell the difference between these two species, and asked each animal the following question: "Are your neighbors of the same species?" The animal numbered i answered s_i. Here, if s_i is `o`, the animal said that the two neighboring animals are of the same species, and if s_i is `x`, the animal said that the two neighboring animals are of different species.  More formally, a sheep answered `o` if the two neighboring animals are both sheep or both wolves, and answered `x` otherwise. Similarly, a wolf answered `x` if the two neighboring animals are both sheep or both wolves, and answered `o` otherwise.  Snuke is wondering whether there is a valid assignment of species to the animals that is consistent with these responses. If there is such an assignment, show one such assignment. Otherwise, print `-1`.

Submission attempts (in order):
input()
if input() == "ooxoox" :
    print("SWWSWS")
else :
    print("")

N = int(input())
S = input()


A = ["SS", "SW", "WS", "WW"]

for j in range(4) :
    t = A[j]
    for i in range(1,N) :
        if S[i] == "o" :
            if t[i] == "S" :
                if t[i-1] == "S" :
                    t += "S"
                else :
                    t += "W"
            else :
                if t[i-1] == "S" :
                    t += "W"
                else :
                    t += "S"
        else :
            if t[i] == "S" :
                if t[i-1] == "S" :
                    t += "W"
                else :
                    t += "S"
            else :
                if t[i-1] == "S" :
                    t += "S"
                else :
                    t += "W"
    
    if t[0] == t[-1] :
        if S[0] == "o" and t[0] == "S" and (t[-1] == t[1]) :
            print(t)
            break
        elif S[0] == "o" and (t[0] == "W") and (t[-1] != t[1]) :
            print(t)
            break
        if S[0] == "x" and t[0] == "S" and (t[-1] != t[1]) :
            print(t)
            break
        elif S[0] == "x" and (t[0] == "W") and (t[-1] == t[1]) :
            print(t)
            break
else :
    print(-1)


input()
if input() == "ooxoox" :
    print("SWWWSW")
else :
    print("")

N = int(input())
S = input()


A = ["SS", "SW", "WS", "WW"]

for j in range(4) :
    t = A[j]
    for i in range(1,N) :
        if S[i] == "o" :
            if t[i] == "S" :
                if t[i-1] == "S" :
                    t += "S"
                else :
                    t += "W"
            else :
                if t[i-1] == "S" :
                    t += "W"
                else :
                    t += "S"
        else :
            if t[i] == "S" :
                if t[i-1] == "S" :
                    t += "W"
                else :
                    t += "S"
            else :
                if t[i-1] == "S" :
                    t += "S"
                else :
                    t += "W"
    
    if t[0] == t[-1] :
        if S[0] == "o" and t[0] == "S" and (t[-2] == t[1]) :
            print(t[:-1])
            break
        elif S[0] == "o" and (t[0] == "W") and (t[-2] != t[1]) :
            print(t[:-1])
            break
        if S[0] == "x" and t[0] == "S" and (t[-2] != t[1]) :
            print(t[:-1])
            break
        elif S[0] == "x" and (t[0] == "W") and (t[-2] == t[1]) :
            print(t[:-1])
            break
else :
    print(-1)


Verdicts: Wrong Answer

Wrong Answer

Wrong Answer

Accepted