Eroare de compilare: main.cpp: In function 'int main()': main.cpp:19:22: error: expected primary-expression before '==' token 19 | if (fr[b[i]])==0) | ^~ main.cpp:9:9: warning: unused variable 'x' [-Wunused-variable] 9 | int x,nr=0,nr1=0,st=1,dr=n,ok=0,t,i,p,j,k,st1=0,dr1=0,st2=0,dr2=0; | ^ main.cpp:9:16: warning: unused variable 'nr1' [-Wunused-variable] 9 | int x,nr=0,nr1=0,st=1,dr=n,ok=0,t,i,p,j,k,st1=0,dr1=0,st2=0,dr2=0; | ^~~ main.cpp:9:22: warning: unused variable 'st' [-Wunused-variable] 9 | int x,nr=0,nr1=0,st=1,dr=n,ok=0,t,i,p,j,k,st1=0,dr1=0,st2=0,dr2=0; | ^~ main.cpp:9:27: warning: unused variable 'dr' [-Wunused-variable] 9 | int x,nr=0,nr1=0,st=1,dr=n,ok=0,t,i,p,j,k,st1=0,dr1=0,st2=0,dr2=0; | ^~ main.cpp:9:41: warning: unused variable 'p' [-Wunused-variable] 9 | int x,nr=0,nr1=0,st=1,dr=n,ok=0,t,i,p,j,k,st1=0,dr1=0,st2=0,dr2=0; | ^ main.cpp:9:43: warning: unused variable 'j' [-Wunused-variable] 9 | int x,nr=0,nr1=0,st=1,dr=n,ok=0,t,i,p,j,k,st1=0,dr1=0,st2=0,dr2=0; | ^ main.cpp:9:45: warning: unused variable 'k' [-Wunused-variable] 9 | int x,nr=0,nr1=0,st=1,dr=n,ok=0,t,i,p,j,k,st1=0,dr1=0,st2=0,dr2=0; | ^ main.cpp:9:59: warning: unused variable 'st2' [-Wunused-variable] 9 | int x,nr=0,nr1=0,st=1,dr=n,ok=0,t,i,p,j,k,st1=0,dr1=0,st2=0,dr2=0; | ^~~ Non zero exit status: 1