Compilare: user.cpp: In function ‘int main()’: user.cpp:39:32: warning: unused variable ‘x’ [-Wunused-variable] int n, i, j, nr1=0, nrp=0, x, y, pp=0, l, linie, coloana; ^ user.cpp:39:35: warning: unused variable ‘y’ [-Wunused-variable] int n, i, j, nr1=0, nrp=0, x, y, pp=0, l, linie, coloana; ^ user.cpp:39:38: warning: unused variable ‘pp’ [-Wunused-variable] int n, i, j, nr1=0, nrp=0, x, y, pp=0, l, linie, coloana; ^ user.cpp:37:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("lacuri.in", "r", stdin); ^ user.cpp:38:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("lacuri.out", "w", stdout); ^ user.cpp:40:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:43:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a[i][j]); ^