Compilare: user.cpp: In function ‘int main()’: user.cpp:21:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("redu.in", "r", stdin); ^ user.cpp:22:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("redu.out", "w", stdout); ^ user.cpp:23:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:24:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", s + 1); ^ user.cpp:27:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &c[i][j]); ^ user.cpp: In function ‘int solve(int, int)’: user.cpp:15:27: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow] for(int i = st + 1; i <= dr ; ++i) ^ user.cpp:15:27: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow] for(int i = st + 1; i <= dr ; ++i) ^ user.cpp:15:27: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow] for(int i = st + 1; i <= dr ; ++i) ^ user.cpp:15:27: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow] for(int i = st + 1; i <= dr ; ++i) ^ user.cpp:15:27: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow] for(int i = st + 1; i <= dr ; ++i) ^ user.cpp: In function ‘int solve(int, int)’: user.cpp:15:27: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow] for(int i = st + 1; i <= dr ; ++i) ^ user.cpp:15:27: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow] for(int i = st + 1; i <= dr ; ++i) ^ user.cpp:15:27: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow] for(int i = st + 1; i <= dr ; ++i) ^ user.cpp:15:27: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow] for(int i = st + 1; i <= dr ; ++i) ^ user.cpp:15:27: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow] for(int i = st + 1; i <= dr ; ++i) ^