Eroare de compilare: user.cpp:4:13: error: variable ‘std::ifstream fin’ has initializer but incomplete type ifstream fin("bmatrix.in"); ^ user.cpp:5:14: error: variable ‘std::ofstream fout’ has initializer but incomplete type ofstream fout("bmatrix.out"); ^ user.cpp:6:29: error: ‘N’ was not declared in this scope int vf, n, m, i, j, sol, st[N], a[N][N], r[N][N], l[N][N]; ^ user.cpp:6:35: error: ‘N’ was not declared in this scope int vf, n, m, i, j, sol, st[N], a[N][N], r[N][N], l[N][N]; ^ user.cpp:6:38: error: ‘N’ was not declared in this scope int vf, n, m, i, j, sol, st[N], a[N][N], r[N][N], l[N][N]; ^ user.cpp:6:44: error: ‘N’ was not declared in this scope int vf, n, m, i, j, sol, st[N], a[N][N], r[N][N], l[N][N]; ^ user.cpp:6:47: error: ‘N’ was not declared in this scope int vf, n, m, i, j, sol, st[N], a[N][N], r[N][N], l[N][N]; ^ user.cpp:6:53: error: ‘N’ was not declared in this scope int vf, n, m, i, j, sol, st[N], a[N][N], r[N][N], l[N][N]; ^ user.cpp:6:56: error: ‘N’ was not declared in this scope int vf, n, m, i, j, sol, st[N], a[N][N], r[N][N], l[N][N]; ^ user.cpp:7:8: error: ‘N’ was not declared in this scope char s[N]; ^ user.cpp: In function ‘int Drept1(int, int)’: user.cpp:14:22: error: ‘r’ was not declared in this scope sol=max(sol,(r[i][j]-l[i][j]-1)*min(a[i][j],i-p1+1)); ^ user.cpp:14:30: error: ‘l’ was not declared in this scope sol=max(sol,(r[i][j]-l[i][j]-1)*min(a[i][j],i-p1+1)); ^ user.cpp:14:45: error: ‘a’ was not declared in this scope sol=max(sol,(r[i][j]-l[i][j]-1)*min(a[i][j],i-p1+1)); ^ user.cpp: In function ‘int Drept2(int, int)’: user.cpp:24:26: error: ‘r’ was not declared in this scope sol=max(sol,(min(r[i][j],p2+1)-max(l[i][j],p1-1)-1)*a[i][j]); ^ user.cpp:24:44: error: ‘l’ was not declared in this scope sol=max(sol,(min(r[i][j],p2+1)-max(l[i][j],p1-1)-1)*a[i][j]); ^ user.cpp:24:61: error: ‘a’ was not declared in this scope sol=max(sol,(min(r[i][j],p2+1)-max(l[i][j],p1-1)-1)*a[i][j]); ^