Compilare: user.cpp: In function ‘int main()’: user.cpp:38:35: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘bool*’ [-Wformat=] scanf("%d", &bec[i][j]); ^ user.cpp:33:9: warning: unused variable ‘ans’ [-Wunused-variable] int ans, n, lasti, lastj, ncol, nlin, i, j; ^ user.cpp:33:17: warning: unused variable ‘lasti’ [-Wunused-variable] int ans, n, lasti, lastj, ncol, nlin, i, j; ^ user.cpp:33:24: warning: unused variable ‘lastj’ [-Wunused-variable] int ans, n, lasti, lastj, ncol, nlin, i, j; ^ user.cpp:31:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("becuri.in", "r", stdin); ^ user.cpp:32:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("becuri.out", "w", stdout); ^ user.cpp:35:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ user.cpp:38:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &bec[i][j]); ^