Compilare: user.cpp: In function ‘int main()’: user.cpp:38:36: warning: unused variable ‘S’ [-Wunused-variable] int n, i, a[2001],b[2001], j, S, liniei, linief, coli, colf, max=-999, i1, i2, j1, j2, m; ^ user.cpp:38:77: warning: unused variable ‘i1’ [-Wunused-variable] int n, i, a[2001],b[2001], j, S, liniei, linief, coli, colf, max=-999, i1, i2, j1, j2, m; ^ user.cpp:38:81: warning: unused variable ‘i2’ [-Wunused-variable] int n, i, a[2001],b[2001], j, S, liniei, linief, coli, colf, max=-999, i1, i2, j1, j2, m; ^ user.cpp:38:85: warning: unused variable ‘j1’ [-Wunused-variable] int n, i, a[2001],b[2001], j, S, liniei, linief, coli, colf, max=-999, i1, i2, j1, j2, m; ^ user.cpp:38:89: warning: unused variable ‘j2’ [-Wunused-variable] int n, i, a[2001],b[2001], j, S, liniei, linief, coli, colf, max=-999, i1, i2, j1, j2, m; ^ user.cpp:36:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("maxsubsum.in", "r", stdin); ^ user.cpp:37:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("maxsubsum.out", "w", stdout); ^