ho_t4.cpp: In function 'void usaco()':
ho_t4.cpp:25:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
25 | freopen("/media/hariaakash646/785EF1075EF0BF46/CompetitiveProgramming/input.in", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ho_t4.cpp: In function 'int main()':
ho_t4.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(x) scanf("%d", &x)
| ~~~~~^~~~~~~~~~
ho_t4.cpp:87:2: note: in expansion of macro 'scd'
87 | scd(n);
| ^~~
ho_t4.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(x) scanf("%d", &x)
| ~~~~~^~~~~~~~~~
ho_t4.cpp:88:2: note: in expansion of macro 'scd'
88 | scd(m);
| ^~~
ho_t4.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(x) scanf("%d", &x)
| ~~~~~^~~~~~~~~~
ho_t4.cpp:95:3: note: in expansion of macro 'scd'
95 | scd(u);
| ^~~
ho_t4.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(x) scanf("%d", &x)
| ~~~~~^~~~~~~~~~
ho_t4.cpp:96:3: note: in expansion of macro 'scd'
96 | scd(v);
| ^~~
ho_t4.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(x) scanf("%d", &x)
| ~~~~~^~~~~~~~~~
ho_t4.cpp:97:3: note: in expansion of macro 'scd'
97 | scd(c);
| ^~~
ho_t4.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(x) scanf("%d", &x)
| ~~~~~^~~~~~~~~~
ho_t4.cpp:98:3: note: in expansion of macro 'scd'
98 | scd(d);
| ^~~