Compilare: user.cpp: In function ‘void read()’: user.cpp:29:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 1; i <= L; ++i){ ^ user.cpp:34:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 1; i <= N; ++i) ^ user.cpp:35:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 1; j <= L; ++j) ^ user.cpp: In function ‘int distSirPoz(int)’: user.cpp:61:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while( *coloana.begin() == val && !coloana.empty() ){ ^ user.cpp:72:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = valPrec + 1; j <= papirus[i]; ++j) ^ user.cpp:106:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while( nrEl != N ){ ^ user.cpp:117:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(nrEl != N){ ^ user.cpp:42:9: warning: unused variable ‘x’ [-Wunused-variable] int j, x, val, valPrec = 0, nrEl, S = 0; ^ user.cpp: In function ‘int main()’: user.cpp:136:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 1; i <= L; ++i){ ^ user.cpp:138:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 1; j <= N; ++j) ^ user.cpp:132:12: warning: unused variable ‘x’ [-Wunused-variable] int i, j, x, val, valPrec = 0, nrEl; ^ user.cpp:132:15: warning: unused variable ‘val’ [-Wunused-variable] int i, j, x, val, valPrec = 0, nrEl; ^ user.cpp:132:20: warning: unused variable ‘valPrec’ [-Wunused-variable] int i, j, x, val, valPrec = 0, nrEl; ^ user.cpp:132:33: warning: unused variable ‘nrEl’ [-Wunused-variable] int i, j, x, val, valPrec = 0, nrEl; ^