Compilare: user.cpp: In function ‘int main()’: user.cpp:28:25: warning: unused variable ‘l1’ [-Wunused-variable] int Min = 0, i = 1, l1 = 5464560, l2 = 34563460, l3 = 0, l4 = 0, c1 = 3456340, c2 = 0, c3 = 3456346, c4 = 0; ^ user.cpp:28:39: warning: unused variable ‘l2’ [-Wunused-variable] int Min = 0, i = 1, l1 = 5464560, l2 = 34563460, l3 = 0, l4 = 0, c1 = 3456340, c2 = 0, c3 = 3456346, c4 = 0; ^ user.cpp:28:54: warning: unused variable ‘l3’ [-Wunused-variable] int Min = 0, i = 1, l1 = 5464560, l2 = 34563460, l3 = 0, l4 = 0, c1 = 3456340, c2 = 0, c3 = 3456346, c4 = 0; ^ user.cpp:28:62: warning: unused variable ‘l4’ [-Wunused-variable] int Min = 0, i = 1, l1 = 5464560, l2 = 34563460, l3 = 0, l4 = 0, c1 = 3456340, c2 = 0, c3 = 3456346, c4 = 0; ^ user.cpp:28:70: warning: unused variable ‘c1’ [-Wunused-variable] int Min = 0, i = 1, l1 = 5464560, l2 = 34563460, l3 = 0, l4 = 0, c1 = 3456340, c2 = 0, c3 = 3456346, c4 = 0; ^ user.cpp:28:84: warning: unused variable ‘c2’ [-Wunused-variable] int Min = 0, i = 1, l1 = 5464560, l2 = 34563460, l3 = 0, l4 = 0, c1 = 3456340, c2 = 0, c3 = 3456346, c4 = 0; ^ user.cpp:28:92: warning: unused variable ‘c3’ [-Wunused-variable] int Min = 0, i = 1, l1 = 5464560, l2 = 34563460, l3 = 0, l4 = 0, c1 = 3456340, c2 = 0, c3 = 3456346, c4 = 0; ^ user.cpp:28:106: warning: unused variable ‘c4’ [-Wunused-variable] int Min = 0, i = 1, l1 = 5464560, l2 = 34563460, l3 = 0, l4 = 0, c1 = 3456340, c2 = 0, c3 = 3456346, c4 = 0; ^ user.cpp:16:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rascoala.in", "r", stdin); ^ user.cpp:17:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rascoala.out", "w", stdout); ^ user.cpp:18:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ user.cpp:19:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &n, &m, &k); ^ user.cpp:22:44: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a[(i - 1) * m + j].el); ^ user.cpp: In function ‘bool cmp(elem, elem)’: user.cpp:13:1: warning: control reaches end of non-void function [-Wreturn-type] } ^